CN203979435U - A kind of over-voltage over-current protection valve for drip irrigation pipe - Google Patents
A kind of over-voltage over-current protection valve for drip irrigation pipe Download PDFInfo
- Publication number
- CN203979435U CN203979435U CN201420376132.XU CN201420376132U CN203979435U CN 203979435 U CN203979435 U CN 203979435U CN 201420376132 U CN201420376132 U CN 201420376132U CN 203979435 U CN203979435 U CN 203979435U
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- valve body
- axle
- catch
- limiting
- flabellum
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- Expired - Fee Related
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A kind of over-voltage over-current protection valve for drip irrigation pipe, comprise valve body, in described valve body, near entry end, be provided with flabellum, flabellum is arranged on flabellum axle, in valve body, near outlet end, be provided with the rotating catch axle of limiting the quantity of, the catch of limiting the quantity of is fixed on limits the quantity of on catch axle, and the area of the catch of limiting the quantity of is less than the flow area of the outlet of valve body, and one end of flabellum axle and the catch axle of limiting the quantity of all extends to valve body outside; In valve body outside, be provided with rotating coder, controller, magnetic clutch and transmitting assemblies, rotating coder is connected with flabellum axle, controller respectively with rotating coder and magnetic clutch connection, the push rod connection for transmission assembly of magnetic clutch, transmitting assemblies connects the catch axle of limiting the quantity of.The utility model operating sensitivity is high, and main parts size is arranged on valve body outside, and jam does not occur in inside, and working stability is reliable.The utility model, for drip irrigation pipe pipe-line system, can keep the flow pressure in pipeline balanced, avoids causing because pressure is excessive downstream drip irrigation pipe to occur booster phenomenon.
Description
Technical field
The utility model relates to a kind of pipeline parts, particularly a kind of over-voltage over-current protection valve for drip irrigation pipe.
Background technique
Drip irrigation pipe is a kind of plastic tube with water dropper, and water dropper is provided with labyrinth flow-path, and the water in plastic tube is flowed out by the hole of dripping that is communicated with, is arranged on labyrinth flow-path on plastic tube after labyrinth flow-path decompression throttling, and directly drip irrigation is at the root of crop.Drip irrigation pipe needs to keep pressure, flow substantially constant in drip irrigation process, shows, according to test data when pipeline hydraulic pressure increases, flow can strengthen thereupon, if occur, pipeline hydraulic pressure increases suddenly, likely causes downstream drip irrigation pipe to occur booster phenomenon, causes leakage accident.
Balance safety-valve is under hydraulic regime; play the valve of balanced flow and overvoltage protection; its working principle is by changing the gap (being aperture) of spool and valve seat; change the flow through circulating resistance of valve of fluid; reach the object of adjust flux and overvoltage protection, be equivalent to the throttle element that a local resistance can change.Traditional balance safety-valve is used and can play to a certain extent overvoltage protection effect on drip irrigation pipeline; but the problem existing is; in the larger variable flow system of pipe-line system fluctuation of load; real work rating curve tends to depart from desirable rating curve; prolonged and repeated use can cause the control characteristic variation of protective gear; degree of regulation reduces; do not reach pressure and increase suddenly the Expected Results of urgent protection, the problem often occurring is mainly reflected in the aspects such as the stifled card of spool, heavy, job insecurity, maintenance difficulties are large.
Model utility content
The purpose of this utility model is the drawback for prior art, provides a kind of and is quick on the draw, the inner over-voltage over-current protection valve for drip irrigation pipe without jam, reliable working performance.
Problem described in the utility model realizes with following technical proposals:
A kind of over-voltage over-current protection valve for drip irrigation pipe, comprise valve body, in described valve body, near entry end, be provided with flabellum, flabellum is arranged on flabellum axle, in valve body, near outlet end, be provided with the rotating catch axle of limiting the quantity of, the catch of limiting the quantity of is fixed on limits the quantity of on catch axle, and the area of the catch of limiting the quantity of is less than the flow area of the outlet of valve body, and one end of described flabellum axle and the catch axle of limiting the quantity of all extends to valve body outside; In valve body outside, be provided with rotating coder, controller, magnetic clutch and transmitting assemblies, described rotating coder is connected with flabellum axle, described controller respectively with rotating coder and magnetic clutch connection, the push rod connection for transmission assembly of described magnetic clutch, transmitting assemblies connects the catch axle of limiting the quantity of.
The above-mentioned over-voltage over-current protection valve for drip irrigation pipe, described transmitting assemblies is intermeshing rack and pinion, the push rod of the affixed magnetic clutch of described tooth bar, described gear is fixedly mounted on one end that the catch axle of limiting the quantity of is positioned at valve body outside.
The above-mentioned over-voltage over-current protection valve for drip irrigation pipe, the entry end of described valve body is provided with installation sleeve, and installation sleeve is threaded with valve body entry end.
The above-mentioned over-voltage over-current protection valve for drip irrigation pipe, described flabellum axle is positioned at one end of valve body to be supported by the correcting frame that is fixed on valve body, described in the one end that catch axle is positioned at valve body of limiting the quantity of by the support slot being arranged on valve interior wall, supported.
The above-mentioned over-voltage over-current protection valve for drip irrigation pipe, is provided with the first seal ring between described flabellum axle and valve body; Described limiting the quantity of is provided with the second seal ring between catch axle and valve body.
The above-mentioned over-voltage over-current protection valve for drip irrigation pipe, described valve body is L shaped, described in the catch of limiting the quantity of be round sheet body.
The utility model comprises valve body, flabellum, rotating coder, controller, magnetic clutch transmitting assemblies and the catch of limiting the quantity of, flabellum is connected with rotating coder, the flabellum tach signal that rotating coder is collected passes to controller, flow flabellum rotation parameters during the pre-set normal work of controller, if the signal of rotating coder feedback is within the scope of normal parameter, the catch of limiting the quantity of is failure to actuate; When conduit entrance pressure and flow increase suddenly; flow flabellum faster rotational speed; surpass setting value; the work of now control unit instruction magnetic clutch; the push rod of magnetic clutch stretches out, and drives coupled transmitting assemblies action, and catch 90-degree rotation makes to limit the quantity of; thereby reduce pipeline flow area, play the effect of over-voltage over-current protection.The utility model is by electrical apparatus element control action, and operating sensitivity is high, and main parts size is arranged on valve body outside, and jam does not occur in inside, and working stability is reliable.The utility model, for drip irrigation pipe pipe-line system, can keep the flow pressure in pipeline balanced, avoids causing because pressure is excessive downstream drip irrigation pipe to occur booster phenomenon, causes leakage accident.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view.
In figure, each list of reference numerals is: 1, installation sleeve, 2, correcting frame, 3, flabellum, 4, flabellum axle, 5, valve body, 5-1, support slot, 6, the first seal ring, 7, rotating coder fitting seat, 8, rotating coder, 9, controller, 10, magnetic clutch, 11, tooth bar, 12, the catch axle of limiting the quantity of, 13, gear, the 14, second seal ring, 15, the catch of limiting the quantity of.
Embodiment
Referring to Fig. 1, Fig. 2, the utility model is by comprising L shaped valve body 5, at the entry end of valve body, is provided with installation sleeve 1, and installation sleeve is threaded with valve body entry end.In valve body, near entry end, be provided with flabellum 3, flabellum is arranged on flabellum axle 4, and one end of flabellum axle is supported by the correcting frame 2 being fixed in valve body, and the other end of flabellum axle extends to outside valve body, and flabellum axle synchronously rotates with flabellum.Flabellum axle is positioned at valve body outboard end and is connected with the detection axis of rotating coder 8 through rotating coder fitting seat 7.In valve body, near outlet end, be provided with the rotating catch axle 12 of limiting the quantity of, the catch 15 of limiting the quantity of is fixed on limits the quantity of on catch axle, and the catch of limiting the quantity of is circular piece, and the area of the catch of limiting the quantity of is less than the flow area of the outlet of valve body.The catch axle one end of limiting the quantity of is supported by the support slot 5-1 that is arranged on valve body 5 inwall places, and the other end of the catch axle of limiting the quantity of extends to valve body outside.At valve body, be also provided with controller 9, magnetic clutch 10 and intermeshing tooth bar 11, gear 13 outward.Described controller respectively with rotating coder and magnetic clutch connection, the affixed tooth bar of push rod of described magnetic clutch, described gear is fixedly mounted on one end that the catch axle of limiting the quantity of is positioned at valve body outside.For avoiding leak of liquid, between flabellum axle and valve body, be provided with the first seal ring 6, between catch axle and valve body, be provided with the second seal ring 14 limiting the quantity of.
Still referring to Fig. 1, Fig. 2, the utility model connects in drip irrigation pipe pipe-line system while using, working principle of the present utility model is as follows: current enter the entrance of valve body 5 along the direction of arrow, under flow action, flabellum 3 drives 4 rotations of flabellum axle, thereby rotational parameters is delivered to coupled rotating coder 8, rotating coder passes to controller 9 by turn signal, the rotation parameters scope of flabellum under the pre-set normal working of controller, if the signal of rotating coder feedback is within the scope of normal parameter, magnetic clutch, tooth bar, gear and the catch of limiting the quantity of are failure to actuate, and the catch of limiting the quantity of is the vertical state parallel with water (flow) direction, if pipe-line system pressure and flow increase suddenly, cause flabellum faster rotational speed, rotating speed surpasses after setting value, controller sends instruction, magnetic clutch 10 actions, the push rod of magnetic clutch stretches out, promoting coupled tooth bar 11 moves, rack drives gear 13 90-degree rotations, the gear driven also 90-degree rotation in the lump of catch 15 of limiting the quantity of that catch axle and being arranged on is limited the quantity of on catch axle of limiting the quantity of, the catch of limiting the quantity of becomes the level vertical with water (flow) direction, like this, current in valve body can only flow out from the annular region of limiting the quantity of between catch and valve body, the catch of limiting the quantity of has changed the flow through circulating resistance of valve body of fluid, reach the object of adjust flux and overvoltage protection, avoid causing because pressure is excessive downstream drip irrigation pipe to occur booster phenomenon, cause leakage accident.Limit the quantity of the diameter of catch through calculating, the throughput of through-flow of annular between itself and valve body is remained in scope of design.
Claims (6)
1. the over-voltage over-current protection valve for drip irrigation pipe, comprise valve body (5), it is characterized in that: in described valve body, near entry end, be provided with flabellum (3), flabellum is arranged on flabellum axle (4), in valve body, near outlet end, be provided with the rotating catch axle (12) of limiting the quantity of, the catch (15) of limiting the quantity of is fixed on limits the quantity of on catch axle, and the area of the catch of limiting the quantity of is less than the flow area of the outlet of valve body, and one end of described flabellum axle and the catch axle of limiting the quantity of all extends to valve body outside; In valve body outside, be provided with rotating coder (8), controller (9), magnetic clutch (10) and transmitting assemblies, described rotating coder is connected with flabellum axle, described controller respectively with rotating coder and magnetic clutch connection, the push rod connection for transmission assembly of described magnetic clutch, transmitting assemblies connects the catch axle of limiting the quantity of.
2. the over-voltage over-current protection valve for drip irrigation pipe according to claim 1; it is characterized in that; described transmitting assemblies is intermeshing tooth bar (11) and gear (13); the push rod of the affixed magnetic clutch of described tooth bar, described gear is fixedly mounted on one end that the catch axle of limiting the quantity of is positioned at valve body outside.
3. the over-voltage over-current protection valve for drip irrigation pipe according to claim 2, is characterized in that, the entry end of described valve body (5) is provided with installation sleeve (1), and installation sleeve is threaded with valve body entry end.
4. the over-voltage over-current protection valve for drip irrigation pipe according to claim 3; it is characterized in that; one end that described flabellum axle (4) is positioned at valve body is supported by the correcting frame (2) that is fixed on valve body, described in the one end that catch axle (12) is positioned at valve body of limiting the quantity of by the support slot (5-1) being arranged on valve interior wall, supported.
5. the over-voltage over-current protection valve for drip irrigation pipe according to claim 4, is characterized in that, is provided with the first seal ring (6) between described flabellum axle and valve body; Limit the quantity of and between catch axle and valve body, be provided with the second seal ring (14).
6. the over-voltage over-current protection valve for drip irrigation pipe according to claim 5, is characterized in that, described valve body (5) is L shaped, described in the catch (15) of limiting the quantity of be round sheet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376132.XU CN203979435U (en) | 2014-07-09 | 2014-07-09 | A kind of over-voltage over-current protection valve for drip irrigation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376132.XU CN203979435U (en) | 2014-07-09 | 2014-07-09 | A kind of over-voltage over-current protection valve for drip irrigation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979435U true CN203979435U (en) | 2014-12-03 |
Family
ID=51976881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420376132.XU Expired - Fee Related CN203979435U (en) | 2014-07-09 | 2014-07-09 | A kind of over-voltage over-current protection valve for drip irrigation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979435U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365483A (en) * | 2020-05-02 | 2020-07-03 | 杜先春 | Precision control liquid flow valve |
| CN113027875A (en) * | 2021-03-01 | 2021-06-25 | 哈尔滨工程大学 | Rotary flow pulsation generating device |
-
2014
- 2014-07-09 CN CN201420376132.XU patent/CN203979435U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365483A (en) * | 2020-05-02 | 2020-07-03 | 杜先春 | Precision control liquid flow valve |
| CN113027875A (en) * | 2021-03-01 | 2021-06-25 | 哈尔滨工程大学 | Rotary flow pulsation generating device |
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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: 20141203 Termination date: 20200709 |