CN2581761Y - On-off valve for motor - Google Patents
On-off valve for motor Download PDFInfo
- Publication number
- CN2581761Y CN2581761Y CN 02258549 CN02258549U CN2581761Y CN 2581761 Y CN2581761 Y CN 2581761Y CN 02258549 CN02258549 CN 02258549 CN 02258549 U CN02258549 U CN 02258549U CN 2581761 Y CN2581761 Y CN 2581761Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- motor
- miniature motor
- gearwheel
- swivel nut
- 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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- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a switching valve for a motor in a gas meter, which comprises a casing provided with a gas inlet and a gas outlet, wherein a screw rod is arranged in the casing and is connected with a miniature motor in transmission. A screw sleeve is movably connected to the screw rod. A sealing ring is connected to the screw sleeve. A pinion is connected to a rotating shaft of the miniature motor, and a gearwheel engaged with the pinion is movably sheathed on the screw rod with a gap. The upper end face of the gearwheel is provided with a limit stop which is matched with a stop sheet fixedly connected to the screw rod. When the miniature motor of the utility model is started, the miniature motor runs idle to slide; when the limit stop of the gearwheel contacts the stop sheet of the screw rod, the miniature motor starts to drive the screw rod. Thus, the miniature motor can accelerate firstly, capacity for bearing force moment is improved, and the miniature motor can not be clamped. The utility model has the advantages of low noise and compact structure.
Description
Technical field: the utility model relates to the motor on-off valve in a kind of small-sized on-off valve, particularly gas instrument.
Background technique: many gas instruments, use the switching of motor on-off valve pilot line as the flowmeter of some pipeline liquefied gas, general motor on-off valve just begins the transmission double-screw bolt in electric motor starting moment, because motor does not also quicken, the excessive motor that causes easily of moment if desired blocks, and influences on-off valve control and opens and closes pipeline.And screw rod is fast inadequately by the speed that regular screw threads drive swivel nut and seal ring lifting moving, makes the on-off action of on-off valve rapid not enough.
Summary of the invention: at the deficiencies in the prior art, the utility model provides a kind of makes the motor acceleration more abundant, the motor on-off valve that can not block.
The utility model comprises the housing that is provided with suction port and air outlet, screw rod places housing and micromachine to be in transmission connection, be connected with swivel nut on this screw rod, seal ring is connected on the swivel nut, be connected with small gear in the rotating shaft of micromachine, be actively socketed on the screw rod with the gearwheel gap of its engagement, the upper-end surface of this gearwheel is provided with block, then is fixedly connected with catch and matches on screw rod.
Slipping when micromachine of the present utility model starts, the pinion rotation gearwheel is when the catch of the block of gearwheel and screw rod contacts, micromachine begins and screw drive, and motor can quicken earlier like this, and the ability of carrying moment improves, can not block, and make noise reduce compact structure.
Further specify the utility model below in conjunction with drawings and Examples.
Description of drawings: Fig. 1 is embodiment's a main structure schematic representation;
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment: as shown in the figure, housing 1 is provided with suction port 12 and air outlet 13, and screw rod 7 places housing 1 and micromachine 2 to be in transmission connection, and is connected with swivel nut 8 on this screw rod 7, and seal ring 9 is connected on the swivel nut 8.Gearwheel 4 gaps that are connected with small gear 3 and its engagement in the rotating shaft of micromachine 2 are actively socketed on the screw rod 7, and the upper-end surface of this gearwheel 4 is provided with block 5, then be fixedly connected with catch 6 and match on screw rod 7.Elder generation's slipping quickens when micromachine 2 starts, and small gear 3 rotates gearwheels 4, when the catch 6 of the block 5 of gearwheel 4 and screw rod 7 contact, and micromachine 2 beginning and screw rod 7 transmissions, and then make swivel nut 8 and the switching of seal ring 9 lifting moving control valves.
The lower end surface of the seal ring 9 of present embodiment is provided with radiation fins 11, and the lower end sealing interlocking of radiation fins 11 constitutes the corrosion protection guard shield on housing 1 inwall, do not influence stuffing box gland 9 like this and move, and can prevent gas medium corrosion screw rod 7, swivel nut 8 etc.The screw thread of screw rod 7 and swivel nut 8 can be double thread screw, can improve swivel nut 8 and seal ring 9 lifting moving speed like this, makes valve opening and closing rapider.The top of swivel nut 8 inner chambers can be equipped with rubber pad 10, the impact force on minimizing and screw rod 7 tops.
Claims (5)
1, a kind of motor on-off valve, comprise the housing that is provided with suction port and air outlet, screw rod places housing and micromachine to be in transmission connection, be connected with swivel nut on this screw rod, seal ring is connected on the swivel nut, it is characterized by: gearwheel (4) gap that is connected with small gear (3) and its engagement in the rotating shaft of micromachine (2) is actively socketed on the screw rod (7), the upper-end surface of this gearwheel (4) is provided with block (5), then is fixedly connected with catch (6) and matches on screw rod (7).
2, motor on-off valve according to claim 1 is characterized by: the lower end surface of seal ring (9) is provided with radiation fins (11), and the lower end sealing interlocking of radiation fins (11) constitutes the corrosion protection guard shield on housing (1) inwall.
3, motor on-off valve according to claim 1 and 2 is characterized by: the screw thread of screw rod (7) and swivel nut (8) is a double thread screw.
4, motor on-off valve according to claim 1 and 2 is characterized by: the top of swivel nut (8) inner chamber is equipped with rubber pad (10).
5, motor on-off valve according to claim 3 is characterized by: the top of swivel nut (8) inner chamber is equipped with rubber pad (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258549 CN2581761Y (en) | 2002-11-16 | 2002-11-16 | On-off valve for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258549 CN2581761Y (en) | 2002-11-16 | 2002-11-16 | On-off valve for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2581761Y true CN2581761Y (en) | 2003-10-22 |
Family
ID=33726249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02258549 Expired - Fee Related CN2581761Y (en) | 2002-11-16 | 2002-11-16 | On-off valve for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2581761Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395475C (en) * | 2004-04-30 | 2008-06-18 | 台州光辉自控科技有限公司 | Electrical ball valve |
| CN109237299A (en) * | 2018-11-14 | 2019-01-18 | 华广发 | A kind of LPG pressure regulator that energy automatic mechanical type turns off the switch |
-
2002
- 2002-11-16 CN CN 02258549 patent/CN2581761Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395475C (en) * | 2004-04-30 | 2008-06-18 | 台州光辉自控科技有限公司 | Electrical ball valve |
| CN109237299A (en) * | 2018-11-14 | 2019-01-18 | 华广发 | A kind of LPG pressure regulator that energy automatic mechanical type turns off the switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |