CN2436738Y

CN2436738Y - Drop and leakage proof valve for miniature irrigation

Info

Publication number: CN2436738Y
Application number: CN 00247715
Authority: CN
Inventors: 吕谋超; 赵彦虎
Original assignee: Farmland Irrigation Research Institute of CAAS
Current assignee: Farmland Irrigation Research Institute of CAAS
Priority date: 2000-08-19
Filing date: 2000-08-19
Publication date: 2001-06-27
Anticipated expiration: 2010-08-19

Abstract

The utility model discloses a drop and leakage resistance valve for miniature irrigation, which comprises a water inlet, a water outlet, a valve core and a valve cap. The utility model is characterized in that a valve cover with an inner screw thread is arranged on the circular ring valve core with an outer screw thread, an air inlet and a twist grip are arranged on the valve cover, the water inlet and the water outlet are arranged on an outer wall of the circle radius of the valve core, the water inlet is in a taper, a water flow passage communicated with the water inlet is extended to a center of circle and is upward at an angle of 90 DEG, the outlet of the water flow passage is provided with a compensation pressure regulation cover, and a water outlet passage of water flow is communicated with the outlet of the water flow passage and the water inlet. The drop and leakage resistance valve for miniature irrigation has low price and can improve the yield of seedling flowers.

Description

The slight irrigation Drop-proof valve

The utility model relates to a kind of slight irrigation Drop-proof valve, is specially adapted to the micro spray irrigation on nursery, the flowers.

Little spray of using on existing nursery stock, the flowers, when starting or closing water valve, water droplet is also at following, at this moment easily injure flowers by a crashing object, cause economic loss, what adopted in nursery with good conditionsi is the inlet pressure regulator, and its shortcoming is: the one, cost an arm and a leg, the 2nd, do not match with homemade pipe fitting, the 3rd, the water quality requirement strictness.

Task of the present utility model is to propose a kind ofly to be difficult for injuring by a crashing object the nursery stock flowers, and cheap a kind of slight irrigation Drop-proof valve of easily popularizing.

Task of the present utility model is finished like this, it comprises water intake, water outlet, spool and valve gap, it is characterized in that: spool is to be with externally threaded annulus, what it matched with spool is the internal thread valve gap, on the central position of valve gap inlet hole is arranged, rotatable handle is arranged on the valve gap, on the circle radius outer wall of spool, water intake and water outlet are arranged, the tapered flow channel that communicates with water intake of water intake extends to the center of circle and upwards is an angle of 90 degrees, be placed with the compensation pressure regulating cover in the outlet port of flow channel, the current exhalant canal communicates with the flow channel outlet, and the current exhalant canal communicates with water intake.

The utlity model has following effect: this slight irrigation Drop-proof valve is cheap, be easy to penetration and promotion, and can improve nursery stock flowers yield rate, increase the stability and the water efficiency of irrigation of irrigation system, increase economic efficiency, be the slight irrigation Drop-proof valve that tallies with the national condition, popularizing application prospect is very wide.

Fig. 1 is a valve core structure schematic representation of the present utility model.

Fig. 2 is the valve core inside cross-sectional view.

Fig. 3 is the structural representation of compensation pressure regulating cover.

Fig. 4 is the structural representation of valve gap.

The drawing explanation: 1. water intake 2. flow channels 3. outside threads 4. water outlets 5. tapers 6. current water outlets 7. water outlet passages 8. compensate pressure regulating covers 9. valve gaps 10. handles 11. internal threads 12. suction ports

Describe embodiment in detail in conjunction with above accompanying drawing, this water clock valve is made up of water clock spool and valve gap two parts, the water clock spool is one to have the annulus (see figure 1) of outside thread 3, what match with spool is valve gap 9 (see figure 4)s that have internal thread 11, the center of valve gap is equipped with inlet hole 12, and rotatable handle 10 is arranged on the valve gap 9.Be entery and delivery port 1 and 4 on the annulus outer wall of spool, the shape of water intake 1 tapered 5, the water intake 1 of design taper is to be convenient to install, the flow channel 2 that communicates with water intake 1 extends to valve core and upwards is an angle of 90 degrees, in the place, the mouth of a river of flow channel, be placed with compensation pressure regulating cover 8 (see figure 3)s, another circle radius is a current water outlet passage 7, current water outlet passage 7 and water outlet all, current water outlet 6 communicates with the water outlet three through water outlet passage 7.When starting and closing water valve, the working water pressure of design is consistent with the rated pressure of shower nozzle, regulate by the compensation pressure regulating cover when hydraulic pressure is big, close water valve hydraulic pressure when low, the compensation pressure regulating cover stops the unlikely outflow of current, so following of water droplet can not occur during low pressure, avoid injuring by a crashing object the nursery stock flowers, and produce local water soaking.

Claims

1, slight irrigation Drop-proof valve, it comprises water intake, water outlet, spool and valve gap, it is characterized in that: spool is to be with externally threaded annulus, what it matched with spool is the internal thread valve gap, on the central position of valve gap inlet hole is arranged, rotatable handle is arranged on the valve gap, on the circle radius outer wall of spool, water intake and water outlet are arranged, the tapered flow channel that communicates with water intake of water intake extends to the center of circle and upwards is an angle of 90 degrees, outlet at flow channel has the compensation pressure regulating cover, the current exhalant canal communicates with the flow channel outlet, and the current exhalant canal communicates with water intake.