CN202955241U - Internal pressure type hydrant for agricultural irrigation - Google Patents
Internal pressure type hydrant for agricultural irrigation Download PDFInfo
- Publication number
- CN202955241U CN202955241U CN 201220535411 CN201220535411U CN202955241U CN 202955241 U CN202955241 U CN 202955241U CN 201220535411 CN201220535411 CN 201220535411 CN 201220535411 U CN201220535411 U CN 201220535411U CN 202955241 U CN202955241 U CN 202955241U
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- China
- Prior art keywords
- hydrant
- internal pressure
- pressure type
- agricultural irrigation
- key
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Abstract
The utility model relates to an internal pressure type hydrant for agricultural irrigation. The hydrant comprises a hydrant body and a screw rod arranged on the hydrant body; the hydrant is characterized in that the lower end of the screw rod is provided with a rotation ring which is hinged with ends of two connection rods; the other ends of the two connection rods are hinged with two gates respectively; the two gates are hinged through a hinge shaft; and the hinge shaft is fixed on the hydrant body. The internal pressure type hydrant has the advantages of simple structure, convenience in use and good sealing performance.
Description
Technical field
The utility model belongs to technology agricultural irrigation facility technology field, particularly relates to a kind of hydrant of the internal pressure type for agricultural irrigation.
Background technique
Hydrant is a kind of ground for agricultural irrigation water outlet device, and general hydrant is all iron piece, uses on the ground, and because it is simple to operate, working service is convenient, is widely used.Development along with the modern agriculture irrigation technique, the irrigation installation overall performance is required to also corresponding raising, the mode that traditional hydrant all adopts screw mandrel to compress gland mostly reaches the purpose of sealing, and this sealing means can only reach at lower pressure (below 0.3MPa) effect of sealing, after pressure surpasses 0.3MPa, will seal failure, start to leak, then screw mandrel is carried out after pretension reaching the purpose of water shutoff.And gland and screw mandrel are all generally synchronous rotaries, when screwing screw mandrel, gland also will rotate, this is very large to the seal rubber pad wearing and tearing, after opening and closing several times, hydrant will, because of the reason of seal rubber pad wearing and tearing, cause seal failure, change the seal rubber pad operation loaded down with trivial details, management, use, maintenance etc. are inconvenience comparatively.
Summary of the invention
The utility model provides a kind of simple in structure, easy to use for solving the technical problem existed in known technology, and sealability is better for the internal pressure type hydrant in agricultural irrigation.
The technological scheme that the utility model is taked for the technical problem existed in the solution known technology is: a kind of hydrant of the internal pressure type for agricultural irrigation, comprise key and be arranged on the leading screw on key, change is installed in the lower end of described leading screw, the end of hinged two connecting rods in described change, the other end of described two connecting rods is hinged two fan brake doors respectively, described two fan brake doors are hinged by hinge, and described hinge is fixed on described key.
The utility model can also adopt following technological scheme:
The Sealing Surface of described gate is provided with one deck water shutoff rubber.
The inwall of described key is provided with the O-ring seal that a circle can coordinate with described gate outer.
Described gate is the semicircle gates of two fans.
On described key, be fixed with for connecting the nut of described leading screw.
Described hinge is that two ends are fixed on the pin on described key.
The utility model is compared advantage and the good effect that conventional art has:
1, because the utility model adopts internal pressure type water shutoff mode, can increase substantially water shutoff pressure, can reach 1MPa, and pressure be larger, corresponding water sealing effect is also better.
2, because the utility model adopts the internal pressure type water shutoff, the screw mandrel pretension is not needed to too large pulling force.Only need throttle down, with regard to assured pipeline hydraulic pressure, compress valve, easy to operate.
3, be connected with connecting rod due to the utility model screw mandrel and adopt change to connect, seal rubber pad can not be worn in the valve opening and closing process, has greatly extended the working life of hydrant seal rubber pad.
What 4, adopt due to the valve in the utility model is that two semicircle valves are combined into circular valve by pin, with common oval internal pressure type structure, essential difference is arranged, and in use circular pipeline can reliably be connected with hydrant.
5, the utility model is simple in structure, working service is convenient, and sealing effect is better.
The accompanying drawing explanation
Fig. 1 is the structural representation under closed condition of the present utility model;
Fig. 2 is the structural representation under opening state of the present utility model.
In figure: 1, key; 2, leading screw; 3, change; 4, connecting rod; 5, gate; 6, water shutoff rubber; 7, O-ring seal; 8, nut.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, a kind of hydrant of the internal pressure type for agricultural irrigation comprises key 1 and is arranged on the leading screw 2 on key 1 that change 3 is installed in the lower end of leading screw 2, change 3 can freely be rotated along axis in leading screw 2 bottoms, the end of hinged two connecting rods 4 in change 3, the other end of two connecting rods 4 hinged two fan brake door 5, two fan brake doors 5 respectively is hinged by hinge, hinge is fixed on key 1, in the present embodiment, gate 5 is the semicircular gate 5 that two fans are hinged; The semicircular gate 5 of two fans is folding centered by hinge can form the circular gate of a fan, and the Sealing Surface of gate 5 is provided with one deck water shutoff rubber 6, and the inwall of key 1 is provided with the O-ring seal 7 that a circle can coordinate with gate 5 outers; Be fixed with the nut 8 for connecting leading screw 2 on key 1; Hinge is that two ends are fixed on the pin on key.
Working principle of the present utility model is:
The hydrant closure, screw mandrel is upwards screwed out, leading screw meeting tension linkage, article two, connecting rod respectively drives the semicircular gate of a fan, and gate moves in a circle under the location of pin, and last two fan brake doors are launched into circular gate and contact with the O-ring seal of key inwall, screw mandrel is carried out to pretension, after pipeline has water to pass through, due to pipeline hydraulic pressure from outwards gate is exerted pressure, make gate sealing reliable.The water bolt is opened, and by the downward precession of screw mandrel, promotes connecting rod, and under the promotion of connecting rod, gate moves in a circle downwards around pin, and the O-ring seal of gate and key inwall breaks away from, and pipeline water flow flows out from hydrant.
Above-mentioned mode of execution is only to functional descriptions of the present utility model; not design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; various distortion and improvement that those skilled in the art make the technical solution of the utility model, within all dropping on protection domain of the present utility model.
Claims (6)
1. the hydrant of the internal pressure type for agricultural irrigation, comprise key (1) and be arranged on the leading screw (2) on key (1), it is characterized in that: change (3) is installed in the lower end of described leading screw (2), the end of upper hinged two connecting rods of described change (3) (4), the other end of described two connecting rods (4) is hinged two fan brake doors (5) respectively, described two fan brake doors (5) are hinged by hinge, and described hinge is fixed on described key (1).
2. the hydrant of the internal pressure type for agricultural irrigation according to claim 1, it is characterized in that: the Sealing Surface of described gate (5) is provided with one deck water shutoff rubber (6).
3. the hydrant of the internal pressure type for agricultural irrigation according to claim 1, it is characterized in that: the inwall of described key (1) is provided with the O-ring seal (7) that a circle can coordinate with described gate (5) outer.
4. according to claim 1, the 2 or 3 described hydrants of the internal pressure type for agricultural irrigation, it is characterized in that: described gate (5) is the semicircular gate of two fans.
5. the hydrant of the internal pressure type for agricultural irrigation according to claim 1, is characterized in that: be fixed with the nut (8) for connecting described leading screw (2) on described key (1).
6. the hydrant of the internal pressure type for agricultural irrigation according to claim 1, it is characterized in that: described hinge is that two ends are fixed on the pin on described key (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535411 CN202955241U (en) | 2012-10-18 | 2012-10-18 | Internal pressure type hydrant for agricultural irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535411 CN202955241U (en) | 2012-10-18 | 2012-10-18 | Internal pressure type hydrant for agricultural irrigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202955241U true CN202955241U (en) | 2013-05-29 |
Family
ID=48460813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220535411 Expired - Lifetime CN202955241U (en) | 2012-10-18 | 2012-10-18 | Internal pressure type hydrant for agricultural irrigation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202955241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029812A (en) * | 2014-06-25 | 2014-09-10 | 中国科学院光电研究院 | Electric control valve and stratospheric airship intake and exhaust integrated device |
-
2012
- 2012-10-18 CN CN 201220535411 patent/CN202955241U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029812A (en) * | 2014-06-25 | 2014-09-10 | 中国科学院光电研究院 | Electric control valve and stratospheric airship intake and exhaust integrated device |
| CN104029812B (en) * | 2014-06-25 | 2017-01-11 | 中国科学院光电研究院 | Electric control valve and stratospheric airship intake and exhaust integrated device |
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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: 20130529 |
|
| CX01 | Expiry of patent term |