CN2043307U

CN2043307U - Underground penstock drainage valve for farmland irrigation

Info

Publication number: CN2043307U
Application number: CN 88216397
Authority: CN
Inventors: 张绍杰; 田永元; 侯延福
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-12-15
Filing date: 1988-12-15
Publication date: 1989-08-23

Abstract

The utility model relates to an underground penstock drainage valve for farmland irrigation. A semicircular arc valve plate is arranged in a three-way valve body. The valve plate is rotated by a shaft for controlling the circulating section of a drainpipe. The drainage valve is also provided with a safety protecting means. The utility model has the advantages of simple structure, convenient operation, low cost, easy fabrication and safety.

Description

Underground penstock drainage valve for farmland irrigation

The utility model is about being used for the flowing water Valve of specus in the field irrigation conveyance system.

In order to save cultivated area, when design field irrigation conveyance system, often water channel is made into Underground pipeline type and carry for the water in the specus is guided into surface irrigation again, need a kind of valve of being convenient to control.A kind of simple valve of using just as a three-way pipe, is pushed up a mouthful sealing at present, and end opening is connected with specus, and a rubber cup is housed on the mouth of pipe of arm, has a slide bar on the leather cup, promotes slide bar, makes leather cup leave a mouth of pipe, and irrigation can discharge water.So this valve mechanism is so simple, because slide bar is installed on the mouth of pipe, therefore, when opening or seal the mouth of pipe, on one's body water all can splash, operation was inconvenient.And can not control water yield size.This in addition valve does not have protective gear, is damaged easily in the open air.

It is a kind of easy to operate, safe in utilization, simple in structure that the purpose of this utility model is to provide, and the valve of energy controlled water flow amount.

As shown in drawings, solution of the present utility model is also to become whole outlet pipe (3) to constitute a Three way type valve body by a cylindrical tube (2) on the side of cylindrical tube with it with one, on the top of cylindrical tube a top cover (1) is arranged, be attached thereto with screw thread.A semicircular arc valve block (4) is arranged in cylindrical tube, two support beams by the center of circle (6) are arranged respectively at the two ends of valve block, make valve block be maintained fixed radian.A dwang (7) passes the center hole of top cover and the central point of support beam links into an integrated entity.For ease of using, six prismatics are made on the top of dwang, and available a kind of specialist tools turns dwang, and valve block can be used for adjusting the flow area size at the mouth of a river along the tube wall move left and right.So just constitute a complete specus outlet valve.

In order to prevent to leak, the outlet (5) of rotatingshaft is installed at the top cover center locates, also have a seal arrangement that prevents to leak (8).The top cap (9) of one six prismatic also is housed on the mouth of pipe at this top cover center, and the top cap in conjunction with being screwed on the mouth of pipe, just can play the effect of protection valve with screw thread.

Following accompanying drawing has been showed structure of the present utility model.

Fig. 1 is the plan view of this device;

Fig. 2 is the left view of this device;

Fig. 3 is the plan view of this device;

Fig. 4 is the perspective view of the valve block of this device;

Fig. 5 is the user mode figure of this device;

Fig. 6 is the whole sectional structure chart of this device.

The utility model has the advantages that clearly. Described three way type valve body is to make cylindrical tube by steel pipe or roll of steel plate to be welded; The semicircular arc valve block also is to make corresponding semicircle radian with roll of steel plate to be welded, and utilizes above-mentioned principle can make the valve of various models. During use the end opening of valve body such as accompanying drawing 5 are installed on the specus pipeline, turn valve block, can regulate easily the flow area of drainpipe, both safety was used again to make things convenient for. This apparatus structure is simple, is easy to suitability for industrialized production.

Claims

1, a kind of specus outlet valve, comprise valve body and valve block, it is characterized in that said valve body has a cylindrical tube [2] also to become whole outlet pipe [3] with it with one on the side of cylindrical tube, there is a top cover [1] to be connected with cylindrical tube, a valve block [4] that is semicircular arc is arranged in cylindrical tube with screw thread.

2, according to the described specus outlet valve of claim 1, the two ends that it is characterized in that the semicircular arc valve block have two support beams by the center of circle (6) respectively, the center hole (5) that a dwang (7) passes top cover is connected with the central point of support beam, and said semicircular arc valve block is to be close on the cylindrical tube inwall.

3, according to claim 1 or 2 described specus outlet valves, it is characterized in that on the center hole of top cover, also having a seal arrangement that prevents to leak (8) with the joint of rotatingshaft.

4, according to the described specus outlet valve of claim 1, it is characterized in that on the center hole of top cover, also having a top cap (9), to be threaded, the shell of top cap is six prismatics each other.