CN87202200U

CN87202200U - Automatic blowdown apparatus for rice field

Info

Publication number: CN87202200U
Application number: CN 87202200
Authority: CN
Inventors: 陈宝仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-02-16
Filing date: 1987-02-16
Publication date: 1988-07-20

Abstract

The utility model relates to an automatic water blowdown apparatus for rice field, which is suitable for controlling the quantity of water used for farmland irrigation. The main body of a water supply device is a box body, one end of the box body is open, and one side of the other closed end of the box body is provided with drain holes; two movable doors for controlling the flow of water are arranged in the box body, and the opening and the closing of the doors are controlled by the pressure of floating water and the pressure of water used for irrigation for controlling the quantity of water used for farmland; the operation of water pumps in an electric irrigation station can be controlled by a mechanism used for controlling floating water in order to automatically stop water supply. The water blowdown apparatus has the advantages of low cost, simple technology, expense saving and power saving, and work efficiency can be increased.

Description

Automatic blowdown apparatus for rice field

The utility model relates to a kind of rice field automatic switch jettison gear, is applicable to the water yield control of irrigated farmland, belongs to agricultural machinery.

Over the years, the irrigation of paddy fields water by manually at ridge near sublateral canal place opening, treat that water is put into when needing the degree of depth, again by manually openning being stopped up, so both wastes of manpower, again because of human error, the water yield in the control rice field of can not complying with one's wishes.

The utility model provides a kind of low cost of manufacture, the simple rice field of technology automatic switch jettison gear.This jettison gear can be realized the water yield control of irrigation of paddy fields water, and can guarantee that when the rice field water level is higher than the sublateral canal water level paddy field water either does not flow backwards and realizes that the electric pumping station stops to fetch water automatically according to people's needs.Therefore the characteristics that have joint money, economize on electricity and raising operating efficiency.

Formation of the present utility model, it is characterized in that rice field automatic switch jettison gear by casing and float, control float means two parts form.Casing one end opens wide, and a side of another blind end has apopore, and two moving fan dodge gates of controlled water flow are housed in the casing, controls opening wide or closing of they by the pressure of showy buoyancy and irrigation water, realizes farmland water yield control.The control float means is made up of control lever and float, and with the operation of the water pump at this mechanism controls electric pumping station, realization stops to fetch water automatically.

The present invention is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of rice field automatic switch jettison gear.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 is the cutaway view of control lever.

Referring to Fig. 1, casing (3) can be made by timber, cement or plastics, and its specification is decided according to the bore of irrigating water inlet between Da Qu and Long Qu, Long Qu and sublateral canal, sublateral canal and the ridge.The aperture that can wear cord (8) is arranged in one sidewall of casing (3), and an end of cord (8) fastens spring (2), and the other end is not connected with floating (drawing among the figure).One end of casing (3) opens wide, and a side of another blind end has apopore, and two fan dodge gates (1) and (6) are housed in the casing (3), and they use hinge to be connected with casing (3) respectively.When spring (2) propped up dodge gate (1) lower end, door opened wide; When spring (2) was pressed down by the buoyancy of floating generation, door was closed.For prevent dodge gate (1) stressed slightly be folding, also be equipped with at dodge gate (1) avris and hit pearl (5), the front of dodge gate (6) is equipped with and is pushed away spring (4), very spring (7) is equipped with in the back.

Among Fig. 3, set screw (11) is used for an end of regulating spring (13), sliding pin (14) and props up spring (13), spring (15) is housed in the other end, spring (15) props up the push rod (16) that has the rubber contact, pin (19) is fixed on of spring (18) on the body of rod (12), (17) one of cords hitch spring (18), and the other end links to each other with float (not drawing among the figure).

When the rice field need intake, earlier the casing (3) in the automatic switch jettison gear of rice field is placed the water inlet between sublateral canal and the ridge, dodge gate (1) props up with spring (2), make it keep opening-wide state, regulate showyly,, promptly produce the buoyancy of closing dodge gate (1) when floating one when being elevated to predetermined water level, dodge gate (1) is closed, and dodge gate (2) is also closed.When the electric pumping station stopped to supply water, the water in Da Qu, Long Qu, the sublateral canal was decorporated at once.This moment is because the pressure of irrigation of paddy fields water level causes dodge gate (2) firmly to be closed, because enduring spring (7) and pushing away the effect of spring (4) on the dodge gate (2).Dodge gate (1) is pushed open to initial water inlet position, and spring (2) props up it again, makes dodge gate (1) remain on opening-wide state, intakes treating next time.Above device is placed between Long Qu and the sublateral canal water inlet, then the water level of controlled Long Qu.

In addition the rubber contact push rod (16) with control lever props up the water pump X button, regulates float and places in the big canal.When the water level in the big canal reached predetermined value, because the buoyancy of float rising, push rod (16) ejected forward, switched off the pump, and realized stopping automatically fetching water.

Claims

1, a kind of rice field automatic switch jettison gear belongs to agricultural machinery.It is characterized in that rice field automatic switch jettison gear by casing [3] and float, control float means two parts form.

2, rice field as claimed in claim 1 automatic switch jettison gear is characterized in that in the sidewall of said casing (3) aperture that can wear cord (8) being arranged, and an end of cord (8) fastens spring (2), and the other end is connected with floating.One end of casing (3) opens wide, and a side of another blind end has apopore, and two fan dodge gates (1) and (6) are housed in the casing (3).The avris of dodge gate (1) is equipped with and hits pearl (5), and the front of dodge gate (6) is equipped with and is pushed away spring (4), very spring (7) is equipped with in the back.

3, rice field as claimed in claim 1 automatic switch jettison gear is characterized in that said control float means is made up of control lever and float.The set screw (11) of regulating spring (13) is housed on the body of rod of control lever (12), one end of sliding pin (14) props up spring (13), spring (15) is housed in the other end, spring (15) props up the push rod (16) of rubber contact, one of spring (18) is fixed on the body of rod (12), and the other end links to each other with float by cord (17).