CN2645436Y

CN2645436Y - Autocontrol irrigation installation

Info

Publication number: CN2645436Y
Application number: CN 200320108922
Authority: CN
Inventors: 吴景德
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-15
Filing date: 2003-10-15
Publication date: 2004-10-06
Anticipated expiration: 2013-10-15

Abstract

The utility model relates to an autocontrol irrigation installation, which is characterized in that: two conducting wires are led out from a humidity sensor; one conducting wire is respectively connected with one end of a power supply L, a solenoid valve or a water pump, while the other conducting wire is connected with one end of the exciting coil arranged inside a relay; the other end of the exciting coil is respectively connected with a power supply N and the tongue arranged inside the relay; the tongue is fixed with the moving contact K arranged inside the relay, while the fixed contact b arranged inside the relay is connected with the other end of the solenoid valve or the water pump. When the humidity sensor is put into plant or soil growing crop, the humidity sensor can control irrigation according to soil humidity; meanwhile, the utility model possesses simple structure, low cost and great convenience in use.

Description

A kind of automatic control irrigation rig

Technical field:

The utility model relates to the technical field of automaton, and specifically a kind of soil humidity according to plantation green plants (or crops) carries out the device of automatic irrigation.

The basis of still not having at present this type is at home and abroad carried out the device of automatic irrigation to green plants with the soil humidity.What it is introduced national with good grounds plantation green plants (and crops) such as Israel carries out the device of automatic irrigation with the soil humidity, but must rely on baroque computer system to control, but popularizes performance difficulty, mainly is the cost height.

Summary of the invention:

The purpose of this utility model is to provide a kind of automatic control irrigation rig, and it can carry out automatic irrigation according to plantation green plants or crops humidity, and simple in structure.

The technical solution of the utility model is achieved in that a kind of automatic control irrigation rig, it mainly comprises the cased humidity sensor that contains circuit board, the relay that is connected with humidity sensor, magnetic valve or water pump, it is characterized in that: humidity sensor is drawn two line conductors, the one line conductor respectively with power supply L, one end of magnetic valve or water pump connects, one end of the magnetizing coil in another line conductor of humidity sensor and the relay is connected, the other end of magnetizing coil respectively with power supply N, tongue in the relay connects, this tongue is fixedlyed connected with the armature contact K in the relay, and the fixed contact b in the relay is connected with the other end of magnetic valve or water pump.

Humidity sensor in the utility model is placed the soil of plant or crops, and humidity sensor can be irrigated according to the humidity control of soil, and simple in structure, and cost is low, and is very easy to use.

Description of drawings:

Fig. 1 is the schematic diagram of utility model one embodiment

Fig. 2 is the electrical equipment connection diagram of Fig. 1

Fig. 3 is a user mode schematic diagram of the present utility model

Embodiment:

Be further described below in conjunction with drawings and Examples-the utility model.

The utility model mainly comprises the cased humidity sensor 1 that contains circuit board, relay 2 that is connected with humidity sensor 1 and magnetic valve 3, its difference prior art is: humidity sensor 1 is drawn two line conductors, the one line conductor is connected with an end of power supply L and magnetic valve 3 respectively, and an end of the magnetizing coil 4 in another line conductor of humidity sensor 1 and the relay 2 is connected.Magnetizing coil 4 is housed in relay 2, tongue 5 and armature 6, tongue 5 is connected with armature 6, between tongue 5 and armature 6, be provided with insulating barrier 7, iron core 8 also is housed in magnetizing coil 4, one end of one extension spring 9 is connected with the base plate of relay, the other end of this extension spring 9 is connected with armature 6, the palp fixed contact a of one armature contact K is arranged on relay, the other end of magnetizing coil 4 is connected with tongue 5 in the relay 2 with power supply N respectively, this tongue 5 is fixedlyed connected with the armature contact K in the relay 2, fixed contact b in the relay 2 is connected with the other end of magnetic valve 3, water inlet 10 in the magnetic valve 3 is connected with feed pipe, delivery port 11 is equipped with the port of pouring usefulness, humidity sensor 1 places soil layer as an outer insulator in force, humidity sensor has the shell of an insulation, the sense contact of an end A point platinum of drawing of resistance R is outside insulation crust in the humidity sensor circuit plate, the platinum volume of this sense contact A is the 0.3-0.7 cubic millimeter, and the formed hole X of platinum sleeve of a round is arranged around it; As distance between the edge of the sense contact A at center and hole X is in 2 millimeters, and is lower than hole X bead 4 millimeter; Be the insulation relation between sense contact A and the hole X, hole X has a plain conductor that connects to guide ground connection 12 into, there is one deck cotton paper at the place, bottom of hole X the inside and the end of a thread that two cotton threads draw is arranged outside the hole, the small circle ring that wire is made embeds among the X of hole, and on the shell of whole sensor the cloth cover 13 of the good sponge of the same water imbibition of cover last layer.

Present embodiment has the switching function of a time-delay in humidity sensor 1, promptly the voltage of triode BG2 is provided by corresponding capacitor C.Power supply service time of the present utility model will be carried out the control in limited time of general supply by micro computer time control switch (or light-operated delay switch).

Use of the present utility model is: the sense contact A point position of humidity sensor is placed apart from the plant soil top layer 1 to 30 centimetre the degree of depth (looking situations such as plant root whisker length correspondingly puts), relation by sense contact A on humidity sensor 1 shell body and hole X, by being used for responding to whether have this media of moisture between A and the X as the absorbent material of the cotton thread of transmitting carrier and tissue paper, and then determining whether relay 2 or magnetic valve 3 move (acting), that is to say, if sense contact A is by the moisture of absorbent material and linking of hole edge metal body among the X of hole, and produce induced electromotive force by the plain conductor of ground connection, the vehicular relation of its moisture, the moment that links by sense contact A and hole X and the induced electromotive force that produces, triode BG1 in the humidity sensor 1 is in low level state simultaneously, because its base stage connects the end of R, the R other end and sense contact A and hole X interlink, and are in the base stage of the induction alternating current input BG1 of this media of moisture under linking; The very high level output of the current collection of BG1, the base stage that enters BG2 is carried out the electric current amplification, the colelctor electrode of BG2 carries out triggering and conducting to controllable silicon SCR, make magnetizing coil 4 paths of electric current in load-relay 2, produce current field, cause armature 6 adhesives, drive the armature contact K and the fixed contact a closure of fixedlying connected with tongue 5, the other end power supply of the magnetic valve 3 that is connected with fixed contact b in the relay 2 this moment is opened a way, and closed electromagnetic valve is not irrigated.Absorbent material as if position between A on the humidity sensor 1 and the X dries out fully, then A and X are because of the linking relationship of this hydrone of not having media, also just lost induced electromotive force, at this moment, the electric current of load (magnetizing coil) does not take place in the humidity sensor 1, magnetizing coil 4 in the relay 2 is because lost energising magnetic field simultaneously, extension spring 9 forces armature 6 to do to move in the other direction, drive the moving point K and the fixed contact b closure of fixedlying connected with tongue 5, this moment, the end owing to power supply was connected with an end of magnetic valve 3, and the other end of power supply is by the other end path of the magnetic valve 3 of the fixed contact b connection of tongue, magnetic valve is opened, irrigate voluntarily, repeat above-mentioned action again until ground moistening and after having influence on the relation of A and X (link).

Claims

1, a kind of automatic control irrigation rig, it mainly comprises the cased humidity sensor that contains circuit board, the relay that is connected with humidity sensor, magnetic valve or water pump, it is characterized in that: humidity sensor is drawn two line conductors, the one line conductor respectively with power supply (L), one end of magnetic valve or water pump connects, one end of the magnetizing coil in another line conductor of humidity sensor and the relay is connected, the other end of magnetizing coil respectively with power supply (N), tongue in the relay connects, this tongue is fixedlyed connected with the armature contact (K) in the relay, and the fixed contact in the relay (b) is connected with the other end of magnetic valve or water pump.

2, a kind of automatic control irrigation rig according to claim 1, it is characterized in that: magnetizing coil, tongue and armature are housed in relay, tongue is connected with armature, between tongue and armature, be provided with insulating barrier, iron core also is housed in magnetizing coil, one end of one extension spring is connected with the base plate of relay, and the other end of this extension spring is connected with armature.

3, a kind of automatic control irrigation rig according to claim 1 and 2, it is characterized in that: an armature contact (K), fixed contact (a), fixed contact (b) are arranged on relay, the palp fixed contact of armature contact (K) (a), the other end of magnetizing coil is connected with tongue in the relay with power supply (N) respectively, this tongue is fixedlyed connected with the armature contact (K) in the relay, and the fixed contact in the relay (b) is connected with the other end of magnetic valve.

4, a kind of automatic control irrigation rig according to claim 1, it is characterized in that: humidity sensor has the shell of an insulation, the sense contact of one end (A) the some platinum of drawing of resistance in the humidity sensor circuit plate (R) is outside insulation crust, the platinum volume of this sense contact (A) is the 0.3-0.7 cubic millimeter, and the formed hole of platinum sleeve (X) of a round is arranged around it.

5, a kind of automatic control irrigation rig according to claim 4, it is characterized in that: hole (X) has a plain conductor that connects to guide ground connection into, there is one deck cotton paper at the place, bottom of hole (X) the inside and the end of a thread that two cotton threads draw is arranged outside the hole, the small circle ring that wire is made embeds in the hole (X), and on the shell of whole sensor the cloth cover of the good sponge of the same water imbibition of cover last layer.