CN107006338A - A kind of automatic irrigation drainage arrangement - Google Patents

Abstract

The invention discloses an automatic irrigation and drainage device, which comprises a water level sensing system and a valve system, and the water level sensing system and the valve system are connected through a telescopic rod and a transmission rod. The invention can accurately control the amount of water in the field according to human requirements, improves the utilization rate of irrigation water, and responds to the call of the agricultural water-saving policy; the invention has simple principle, simple structure, low cost, strong economy, and is easily accepted by farmers groups , the audience is wide; and the components of the device are extremely replaceable, and are also suitable for rural use environments; the present invention realizes zero manpower for irrigation and drainage work, and complies with the development trend of mechanized and automated agricultural production; the present invention has extremely With strong portability, it can be well applied to other similar working environments that require automatic water level control.

Description

An automatic irrigation and drainage device

technical field

This product belongs to the field of automatic agriculture, and relates to an automatic irrigation and drainage device, in particular to an adaptive irrigation and drainage device suitable for paddy field flood irrigation.

Background technique

China is a traditional large agricultural country. At present, the industry in most areas is still dominated by agriculture. Among them, the southern area is mainly dominated by paddy fields, which is the main distribution area for rice cultivation. At present, my country's farmland irrigation and drainage mainly use manual means. Most farmers judge the field water level with the naked eye, and then manually open or close the valve to control the entry and discharge of irrigation water. Accurately meet the requirements of the field water level for rice water demand in different periods. At present, most of the research on automatic irrigation and drainage devices for paddy fields in my country focuses on one-way water intake or one-way drainage. Theorem realizes automatic drainage. Chinese patent (patent number: 201410826591.8) discloses an adjustable farmland automatic drainage valve, which uses the movement of the water level regulator button to adjust the upper and lower positions of the magnetic reed switch through the metal force transmission bar to realize automatic drainage. Although the above two devices can realize automatic drainage of farmland, they can only realize one-way drainage and cannot realize farmland irrigation at the same time. A small number of farmland irrigation and drainage devices can realize automatic irrigation and drainage. Considering its high investment cost and the operation and maintenance of fine instruments, it is currently only suitable for laboratories and cannot be promoted in rural areas today, such as: Chinese patent (patent number: 201410010565.8 ) discloses a magnetic two-way drain valve, in which the magnetic valves, magnetic discs and other devices used are relatively expensive and not practical enough. Another example: Chinese patent (patent number: 201110056863.7) relates to an automatic irrigation and drainage device for farmland. The overall design is complete, but the device has a complex structure, difficult installation and low practicability.

Contents of the invention

The invention mainly solves the technical problems existing in the prior art and provides a device capable of realizing automatic irrigation and drainage.

The technical solution adopted in the present invention is: an automatic irrigation and drainage device, which is characterized in that it includes a water level sensing system and a valve system, and the water level sensing system and the valve system are connected through a telescopic rod and a transmission rod.

The beneficial effects of the present invention are:

1. The device can accurately control the amount of water in the field according to human requirements, improve the utilization rate of irrigation water, and respond to the call of the agricultural water-saving policy;

2. The device has a simple principle, simple structure, low cost, strong economy, and is easily accepted by farmers and has a wide audience; moreover, the components of the device are highly replaceable and are also suitable for rural use environments;

3. The device realizes zero manpower for irrigation and drainage work, and complies with the development trend of mechanized and automated agricultural production;

4. The device has strong portability, and can be well applied to other similar working environments that require automatic control of the water level.

Description of drawings

Fig. 1: the structural diagram of the embodiment of the present invention;

Fig. 2: internal structural diagram of the embodiment of the present invention;

Fig. 3: the exterior view of the static pressure well of the embodiment of the present invention;

Fig. 4: An exploded view of the structure of the water inlet valve and the water outlet valve of the embodiment of the present invention.

detailed description

In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only for illustration and explanation of the present invention, and are not intended to limit this invention.

The water in the paddy field has a buoyancy effect on the floating ball, and the floating ball can be displaced in the vertical direction with the fluctuation of the field water level due to the buoyancy force. This effect can be regarded as the measurement induction of the floating ball to the water level. Through the rod pin system, the floating ball can transmit force to the valve placed on the field stem, and the displacement of the floating ball itself drives the staggered valve to rotate, thereby realizing automatic water intake or drainage. Through the control element, the opening state of the irrigation valve and the drainage valve can be terminated, so as to realize the continuous control of "water shortage irrigation and excess water discharge" along the direction of water accumulation, and the two processes do not interfere with each other.

Based on the above principles, please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4. An automatic irrigation and drainage device provided by the present invention includes a water level sensing system and a valve system. The rods 3 are connected.

The water level sensing system of the present embodiment comprises the water inlet valve float 8, the water outlet valve float 9 and the static pressure well 1, and the water inlet valve float 8 and the water outlet valve float 9 are placed in the static pressure well 1; Set in the paddy field, the bottom is provided with a water inlet 10 with a height of about 10 mm, and the upper part has no cover to ensure that the water level in the static pressure well 1 is consistent with the water level in the paddy field; the static pressure well 1 is provided with two independent chambers, and the water inlet valves are respectively placed Float 8 and water outlet valve float 9.

The valve system of this embodiment includes a water inlet valve 4 and a water outlet valve 5, and the water inlet valve 4 and the water outlet valve 5 are respectively connected with the water inlet valve float 8 and the water outlet valve float 9 in the water level sensing system through the telescopic rod 2 and the transmission The rods 3 are connected; the water inlet valve 4 is composed of a rotatable fan blade 12, a small water hole 11 and a clip 6 that constrains the rotation angle of the fan blade, and the water outlet valve 5 is composed of a rotatable fan blade 12, a small water hole 11 and a constraint The clamp 7 of fan blade rotation angle is formed. The water inlet valve 4 is installed at an elevation 2-5cm higher than the ground, and the water outlet valve 5 is arranged close to the ground.

The device of this embodiment is placed on the side wall facing the farmland on the field stem between the paddy field and the irrigation canal. The field stem digs a culvert at the position where the valve is located, so that the water in the canal and the water in the field can communicate with each other through the valve. The whole device is composed of main components such as static pressure well, floating ball, transmission rod and staggered valve. The micro-static pressure well is close to the wall of the field stalk, and a partition is set to divide it into two parts to control water intake and drainage respectively. The opening of the static pressure well is set so that the water surface in the well is equal to the water surface in the field, and the height of the water surface in the well directly reflects the depth of the water layer in the field. The floating ball is set in the static pressure well, senses the water level in the field, and drives the staggered valve to open and close through the transmission rod system. Two staggered valves control the water inlet and outlet respectively in the field, so as to cooperate with the staggered valve to realize the one-way flow of water in a single culvert.

The two working states of the present embodiment are the irrigation state and the drainage state, and the workflows are respectively:

1. Irrigation status;

The initial state of the water inlet valve 4 is open, and the initial state of the drain valve 5 is closed. The farmer utilizes the telescopic rod 2 to set the target water level of the paddy field in advance. During the irrigation process, the water level in the canal is higher than the water level of the paddy field, and then enters the field through the water inlet valve 4 . With the accumulation of water in the paddy field, the depth of the water layer increases, and the water inlet valve float 8 is moved upward by the buoyancy force, and the water inlet valve 4 is driven to rotate clockwise by the transmission rod 3 . When the water inlet valve float 8 reaches the target water level, the water inlet valve 4 just closes. Since the water inlet valve 4 is provided with a clip 6 that restricts the rotation angle of the valve, even if the water level between the canals is still higher than the field water level at this time, the water inlet valve 4 cannot continue to rotate clockwise to open, thereby effectively controlling the irrigation process. termination.

2. Drainage status;

When the water inflow to the paddy field has reached the irrigation demand, there may be too much water in the field due to natural rainfall and other reasons, and drainage is required. In this case, the water inlet valve 4 has reached the closed state, so that the water cannot flow out from the water inlet culvert. Since the starting point of movement of the water outlet valve float 9 has been set by the farmer in advance according to the upper limit of irrigation (the movement starting point of the water outlet valve float 9 is higher than the movement end of the water inlet valve float 8), so when the amount of water accumulates to the water outlet valve When the floating ball 9 is moved upward by buoyancy, the drain valve 5 rotates counterclockwise and gradually opens to discharge the water. As the drainage proceeds, the water level in the field gradually decreases, and the valve is gradually closed by turning clockwise by its own weight. When the field water level drops to the permissible height, the drainage valve 5 is then closed, and is no longer continued to be opened clockwise by the constraint of the constraint clip 7.

The structure and appearance design of the device in this embodiment meet the requirements of being able to run close to the wall as much as possible, avoiding work such as excavation and filling, and at the same time reduce the internal area of the farmland as much as possible, and do not interfere with manual labor outside the farmland.

Function of the present invention has:

1. Automatic integration of irrigation and drainage. This system uses staggered valves to realize automatic water intake and drainage in two non-interfering pipelines, thereby automatically controlling the irrigation and drainage process;

2. The target water level in the field is adjustable. The system can freely set the initial height of the floating ball movement by using the ruler, so as to control the water level in the field;

3. Resist the interference of natural factors. This system adopts miniature static pressure wells. The static pressure wells can filter the huge fluctuations of the field water surface caused by severe weather such as violent storms, and at the same time protect the movement of the floating ball from the influence of wind and waves.

Although this manual often uses the static pressure well 1, the telescopic rod 2, the transmission rod 3, the water inlet valve 4, the drain valve 5, the clip 6 that the water inlet valve restricts the rotation angle of the fan blade, and the water outlet valve restricts the rotation of the fan blade. Terms such as clip 7 of angle, water inlet valve float 8, water outlet valve float 9, water inlet 10, water hole 11, rotatable fan blade 12, but do not exclude the possibility of using other terms. These terms are only used to describe the essence of the present invention more conveniently, and it is against the spirit of the present invention to interpret them as any additional limitation.

It should be understood that the parts not described in detail in this specification belong to the prior art.

It should be understood that the above-mentioned descriptions for the preferred embodiments are relatively detailed, and should not therefore be considered as limiting the scope of the patent protection of the present invention. Within the scope of protection, replacements or modifications can also be made, all of which fall within the protection scope of the present invention, and the scope of protection of the present invention should be based on the appended claims.

Claims (6)

1. a kind of automatic irrigation drainage arrangement, it is characterised in that：Feel system and valve system, the water level thoughts and feelings including water level System and valve system pass through telescoping rod（2）And drive link（3）Connect.

2. automatic irrigation drainage arrangement according to claim 1, it is characterised in that：The water level thoughts and feelings system includes water inlet Valve ball float（8）, flowing water Valve ball float（9）With static pressure well（1）, the inlet valve ball float（8）, flowing water Valve ball float（9）Put It is placed in static pressure well（1）In.

3. automatic irrigation drainage arrangement according to claim 2, it is characterised in that：The static pressure well（1）It is arranged on rice field It is interior, the water inlet that its bottom is offered（10）, top uncovered, it is ensured that static pressure well（1）Middle water level is consistent with water level in paddy field；It is described quiet Kill-job（1）Two separate chambers are provided with, the inlet valve ball float is placed respectively（8）With flowing water Valve ball float（9）.

4. automatic irrigation drainage arrangement according to claim 1, it is characterised in that：The valve system includes inlet valve （4）And flowing water Valve（5）, the inlet valve（4）, flowing water Valve（5）Floated respectively with the inlet valve in water level thoughts and feelings system Ball（8）With flowing water Valve ball float（9）Pass through telescoping rod（2）And drive link（3）Connect.

5. automatic irrigation drainage arrangement according to claim 4, it is characterised in that：The inlet valve（4）By rotatable Flabellum（12）, limber（11）The clamp of angle is moved with constraint fan blade rotating（6）Composition, the flowing water Valve（5）By rotatable Flabellum（12）, limber（11）The clamp of angle is moved with constraint fan blade rotating（7）Composition.

6. the automatic irrigation drainage arrangement according to claim 4 or 5, it is characterised in that：The inlet valve（4）Install high Journey is above the ground level, the flowing water Valve（5）Be close to ground configuration.