CN111527856A - Drip irrigation device for water and fertilizer integration - Google Patents

Abstract

The invention discloses a drip irrigation device for water and fertilizer integration, comprising a drip irrigation pipe and a sealing cover. A D-shaped drip irrigation channel is opened in the drip irrigation pipe, and a constant pressure groove and a tooth-shaped flow restriction are also opened on the drip irrigation pipe. grooves, drip irrigation grooves and siphon compensation grooves, a water flow channel is opened on one side of the pressure balance baffle, a through hole is formed on the water flow channel plate, and a pair of compression springs are fixedly installed at one end of the siphon compensation groove away from the drip irrigation groove, The siphon balance hole is communicated with the siphon balance ball set in the D-shaped drip irrigation channel, and the siphon balance ball is filled with clean water; Under the action of expanding and cooperating with the tooth-shaped flow restriction groove, the flow rate of the drip irrigation hole is guaranteed. At the same time, during irrigation, the drip irrigation groove is opened, and the drip irrigation groove is closed when the irrigation is stopped, and the volume of the siphon is compensated by the volume expansion of the siphon balance ball, which effectively prevents the liquid backflow of the burette. resulting in blockage.

Description

Drip irrigation device for water and fertilizer integration

technical field

The invention relates to the technical field of agricultural irrigation, in particular to a drip irrigation device used for water and fertilizer integration.

Background technique

my country is a big agricultural country and also a big water-scarce country. my country's per capita freshwater resources are only a quarter of the world's per capita level, ranking 121 in the world. Therefore, the development of precise drip irrigation is the only way for my country's agricultural development. Drip irrigation, water and fertilizer integrated fertilization It is a precise fertilization method, which is only applied to the roots, which significantly improves the utilization rate of fertilizers. Compared with conventional fertilization, it can save more than 30-50% of the fertilizer consumption. However, the drip irrigation method also has certain disadvantages, such as easy blockage, salt accumulation and burning Disadvantages such as seedlings and restricted root development.

In the prior art, the application number is "CN201721613626.5", a small flow drip irrigation irrigator and drip irrigation equipment, the drip irrigation irrigator includes a water inlet cavity and a water outlet cavity, the water inlet cavity includes a water inlet and a flow channel, the flow channel Connected with the water inlet, the flow channel is a sawtooth-shaped flow channel; the water outlet cavity includes a first water outlet, and the first water outlet is communicated with the flow channel; the sawtooth height of the sawtooth-shaped flow channel is 0.90mm, and the sawtooth spacing is 1.14mm, the width of the runner is 0.55mm, the depth of the runner is 0.58mm, the angle of the sawtooth is 30°, the tooth tips of any two teeth of the sawtooth-shaped flow channel are flush, and the flow rate of the above drip irrigation can be as low as 0.6 L/h, solves the problem of how to further reduce the irrigation flow of the drip irrigation emitter. The drip irrigation equipment includes the drip irrigation emitter. The irrigation flow of the drip irrigation emitter is greatly reduced, and the laying length of the capillary can be lengthened, thereby reducing the use of branch pipes. Quantity, thereby reducing the investment cost of drip irrigation equipment, and further saving water.

But the above-mentioned small-flow drip irrigation irrigator and drip irrigation equipment still have obvious defects during use: 1. The above-mentioned device can only achieve pressure balance and restriction through the zigzag flow channel, but the flow-restricting effect of the above-mentioned device is not effective. Obviously, when the pressure in the water pipe increases to a certain range, the above-mentioned zigzag flow channel cannot guarantee the dripping speed of the drip irrigation pipe; 2. The above device has no anti-clogging effect. The end of the drip irrigation is easy to cause a siphon phenomenon, which causes the particles in the soil to enter the inside of the drip irrigation and block the drip irrigation pipe.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a drip irrigation device for the integration of water and fertilizer, so as to solve the problems raised in the above-mentioned background art.

To achieve the above object, the present invention provides the following technical solutions:

A drip irrigation device for the integration of water and fertilizer, comprising a drip irrigation pipe and a sealing cover, the drip irrigation pipe is provided with a D-shaped drip irrigation channel, and the drip irrigation pipe is also provided with a constant pressure groove, a tooth-shaped flow restriction groove, and a drip irrigation groove. and siphon compensation tank, the top of the constant pressure tank is communicated with the D-shaped drip irrigation channel, the pressure balance baffle and the water flow channel plate are arranged in sequence from top to bottom in the constant pressure tank, and one side of the pressure balance baffle is provided with A water flow channel, a through hole is opened on the water flow channel plate, a flexible pressure film is installed on the pressure balance baffle at the upper part of the through hole, and a tooth-shaped flow restriction groove is opened in the constant pressure groove at the bottom of the water flow channel plate a communicating channel, one end of the tooth-shaped flow restricting groove away from the constant pressure groove is communicated with the drip irrigation groove through the channel;

One end of the siphon compensation groove away from the drip irrigation groove is fixedly installed with a pair of compression springs, the other end of the compression springs is fixedly connected to the fixing plate of the telescopic pipe, and the fixing plate on the other side of the telescopic pipe is provided with a siphon balance hole , the siphon balance hole is communicated with the siphon balance ball set in the D-shaped drip irrigation channel, and the siphon balance ball is filled with clean water;

The fixing plate connected with the compression spring is also fixedly installed with a fixing seat, and a primary sleeve is fixedly connected to the fixing seat, and the primary sleeve is movably sleeved in the secondary sleeve, and the primary A telescopic spring is fixedly installed between the sleeve and the secondary sleeve, and one end of the secondary sleeve away from the primary sleeve is fixedly connected to the drip irrigation tank blocking plate, and the drip irrigation tank blocking plate is movably arranged in the drip irrigation tank, The primary sleeve and the secondary sleeve are movably arranged in the telescopic channel, a sealing sleeve is fixedly installed in the telescopic channel, and the primary sleeve is movably inserted in the sealing sleeve.

Preferably, the sealing cover is provided with bolt holes, the drip irrigation pipe is provided with threaded holes matched with the bolt holes, and the sealing cover is bolted to the drip irrigation pipe.

Preferably, the sealing cover body is provided with a drip irrigation hole matched with the drip irrigation groove, and the drip irrigation hole is in the shape of a horn hole.

Preferably, threaded pipes are fixedly installed on both sides of the drip irrigation pipe, and the threaded pipes on both sides are threadedly connected to the irrigation pipe.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the flexible pressure film is arranged on the upper end of the through hole opened by the water flow channel plate. When the pressure in the irrigation pipe increases, the flexible pressure film is squeezed to the side of the through hole under the action of pressure, thereby further restricting the flow of the through hole. The flow rate, combined with the tooth-shaped flow restriction groove, can better ensure the titration speed and ensure the constant flow rate of each drip irrigation device;

2. The above device is filled with clean water in the siphon balance ball and the telescopic tube. When the inside of the irrigation pipe increases, the siphon balance ball shrinks under the action of the irrigation pipe pressure. When the pressure of the siphon balance ball on the expansion tube is greater than the pressure of the extrusion spring When the force is applied, the water inside the siphon balance ball enters the telescopic tube, thereby opening the drip irrigation tank. At the same time, after the irrigation is completed, under the push of the squeeze spring, the liquid flows into the siphon balance ball again, thereby compensating for the siphon space and closing the drip irrigation. groove, effectively prevent the drip irrigation pipe from clogging.

The invention ensures the flow rate of the drip irrigation hole by expanding the flexible pressure film under the action of the pressure to match the tooth-shaped flow restricting groove. At the same time, during irrigation, the drip irrigation groove is opened, and the drip irrigation groove is closed when the irrigation is stopped, and the siphon is compensated by the volume expansion of the siphon balance ball. The volume of the burette can effectively prevent the blockage caused by the backflow of the burette liquid.

Description of drawings

Fig. 1 is the overall explosion structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the expansion structure of the siphon balance ball of the present invention;

3 is a schematic diagram of the shrinkage structure of the siphon balance ball of the present invention;

4 is a schematic diagram of the enlarged structure of the A region of the present invention;

FIG. 5 is a schematic diagram of the installation structure of the telescopic spring of the present invention.

In the picture: 1 drip irrigation pipe, 2 sealed cover, 3D drip irrigation channel, 4 constant pressure groove, 5 tooth flow restriction groove, 6 drip irrigation groove, 7 siphon compensation groove, 8 water flow channel plate, 9 water flow channel, 10 through hole , 11 flexible pressure film, 12 squeeze spring, 13 telescopic tube, 14 fixed plate, 15 siphon balance hole, 16 siphon balance ball, 17 fixed seat, 18 first stage sleeve, 19 second stage sleeve, 20 telescopic spring, 21 Drip irrigation groove blocking plate, 22 telescopic channels, 23 sealing sleeves, 24 bolt holes, 25 threaded holes, 26 drip irrigation holes, 27 threaded pipes, 28 irrigation pipes, 29 pressure balance baffles.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figures 1-5, the present invention provides a technical solution:

A drip irrigation device for water and fertilizer integration, comprising a drip irrigation pipe 1 and a sealing cover 2, a D-shaped drip irrigation channel 3 is opened in the drip irrigation pipe 1, and a constant pressure groove 4 and a tooth-shaped flow restriction groove are also opened on the drip irrigation pipe 1. 5. The drip irrigation tank 6 and the siphon compensation tank 7, the top of the constant pressure tank 4 is connected with the D-shaped drip irrigation channel 3, and the pressure balance partition plate 29 and the water flow channel plate 8 are sequentially arranged in the constant pressure tank 4 from top to bottom. A water flow channel 9 is opened on one side of the plate 29, a through hole 10 is opened on the water flow channel plate 8, a flexible pressure film 11 is installed on the pressure balance baffle 29 on the upper part of the through hole 10, and a constant pressure groove 4 at the bottom of the water flow channel plate 8 is installed. A channel communicating with the tooth-shaped flow restricting groove 5 is opened, and the end of the tooth-shaped flow restricting groove 5 away from the constant pressure groove 4 is communicated with the drip irrigation groove 6 through the channel;

The drip irrigation pipe 1 of the present invention adopts a buried installation structure. When irrigation is required, a booster pump adds a certain pressure solution to the drip irrigation pipe 1, and the water and fertilizer integrated solution in the D-shaped drip irrigation channel enters the constant pressure tank 4 through the channel. , the water and fertilizer integrated solution enters the pressure balance baffle 29 through the constant pressure tank 4, and enters the gap between the water flow channel plate 8 and the pressure balance baffle 29 through the water flow channel 9 on the side of the pressure balance baffle 29. When the D-shaped drip irrigation channel When the pressure increases, the D-shaped drip irrigation channel 3 is squeezed to the side of the flexible pressure film 11, and when the pressure is higher, the elastic deformation of the flexible pressure film 11 is greater, and the flexible pressure film 11 is squeezed to the side of the through hole 10. , resulting in the reduction of the gap of the water flow through the through hole 10, thereby balancing the increase in the pressure in the D-shaped drip irrigation channel 3, and then stabilizing the flow rate of the water flow through the hole 26 to ensure that the flow rate of the drip irrigation hole 26 is stable;

One end of the siphon compensation groove 7 away from the drip irrigation groove 6 is fixedly installed with a pair of compression springs 12 , the other end of the compression springs 12 is fixedly connected to the fixing plate 14 of the telescopic tube 13 , and a siphon is opened on the fixing plate 14 on the other side of the telescopic tube 13 Balance hole 15, the siphon balance hole 15 communicates with the siphon balance ball 16 set in the D-shaped drip irrigation channel 3, and the siphon balance ball 16 is filled with clean water;

When irrigation is required, a certain pressure of water and fertilizer integrated solution passes through the D-shaped drip irrigation channel 3. At this time, the pressure inside the D-shaped drip irrigation channel 3 increases, and the D-shaped drip irrigation channel 3 squeezes the siphon balance ball 17, and the siphon The clean water in the balance ball 17 enters into the telescopic tube 13 through the siphon balance hole 15 under the action of pressure, the volume of the telescopic tube 13 increases, the expansion of the telescopic tube 13 drives the fixed plate 14 to overcome the telescopic spring 20, and the movement of the fixed plate 14 drives a The first-stage sleeve 18 moves, the first-stage sleeve 18 moves to drive the second-stage sleeve 19 to move, and the second-stage sleeve 19 moves to drive the drip irrigation tank blocking plate 21 to move, so that the drip irrigation tank 6 is opened, and the water and fertilizer integrated solution can pass through drip irrigation. The hole 26 flows out. When the irrigation stops, the internal pressure of the D-shaped drip irrigation channel 3 decreases. At this time, the pressure of the squeeze spring 12 is greater than the water pressure in the D-shaped drip irrigation channel 3. The squeeze spring 12 acts to drive the fixed plate 14 to approach the siphon balance. The side of the hole 15 moves, causing the moisture inside the telescopic tube 13 to enter the telescopic tube 13 through the siphon balance hole 15, so that the volume in the D-shaped drip irrigation channel 3 increases, and in this way, the interior of the D-shaped drip irrigation channel 3 is compensated. It can effectively prevent the clogging caused by the reverse suction of the drip irrigation hole 26 caused by the siphon phenomenon when the irrigation is stopped.

A fixed seat 17 is also fixedly installed on the fixed plate 14 connected with the compression spring 12, and a first-level sleeve 18 is fixedly connected to the fixed seat 17. A telescopic spring 20 is fixedly installed between the barrel 18 and the secondary sleeve 19. The end of the secondary sleeve 19 away from the primary sleeve 18 is fixedly connected to the drip irrigation slot blocking plate 21, and the drip irrigation slot blocking plate 21 is movably arranged in the drip irrigation slot. 6, the primary sleeve 18 and the secondary sleeve 19 are movably arranged in the telescopic channel 22, the sealing sleeve 23 is fixedly installed in the telescopic channel 22, and the primary sleeve 18 is movably inserted in the sealing sleeve 23.

When the fixed plate 14 moves to the siphon balance hole 15, the movement of the fixed seat 17 drives the primary sleeve 18 to move, the primary sleeve 18 moves to drive the secondary sleeve 19 to move, and the movement of the secondary sleeve 19 drives the drip irrigation groove to block. The plate 21 blocks the drip irrigation tank 6 , further protects the drip irrigation tank 6 , and effectively prevents the drip irrigation pipe 6 from being blocked.

As a preferred option, the sealing cover 2 is provided with bolt holes 24, the drip irrigation pipe 1 is provided with threaded holes 25 that cooperate with the bolt holes 24, the sealing cover 2 is bolted to the drip irrigation pipe 1, and the sealing cover 2 is connected to the drip irrigation pipe 1 by bolts. The drip irrigation pipe 1 is installed and cooperated, and when the interior needs to be overhauled, it is only necessary to remove the bolts to overhaul the interior.

As a preferred option, the sealing cover 2 is provided with a drip irrigation hole 26 that cooperates with the drip irrigation groove 6. The drip irrigation hole 26 is in the shape of a trumpet hole, and the design of the drip irrigation hole 26 in the trumpet hole shape can prevent particles in the soil from clogging it.

As a preference, threaded pipes 27 are fixedly installed on both sides of the drip irrigation pipe 1 , the threaded pipes 27 on both sides are threadedly connected to the irrigation pipe 28 , and the drip irrigation pipe 1 and the irrigation pipe 28 are connected through the threaded pipes 27 .

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. A drip irrigation device for water and fertilizer integration, comprising a drip irrigation pipe (1) and a sealing cover (2), characterized in that: the drip irrigation pipe (1) is provided with a D-shaped drip irrigation channel (3), so The drip irrigation pipe (1) is also provided with a constant pressure groove (4), a toothed flow restriction groove (5), a drip irrigation groove (6) and a siphon compensation groove (7). The drip irrigation channel (3) is connected to each other, and a pressure balance baffle (29) and a water flow channel plate (8) are sequentially arranged in the constant pressure tank (4) from top to bottom, and one side of the pressure balance baffle (29) A water flow channel (9) is opened, a through hole (10) is opened on the water flow channel plate (8), and a flexible pressure membrane (11) is installed on the pressure balance partition plate (29) on the upper part of the through hole (10). , the constant pressure groove (4) at the bottom of the water flow channel plate (8) is provided with a channel communicating with the tooth-shaped flow restricting groove (5), and the tooth-shaped flow restricting groove (5) is far away from the constant pressure groove (4) One end is communicated with the drip irrigation tank (6) through a channel; A pair of compression springs (12) are fixedly installed at one end of the siphon compensation groove (7) away from the drip irrigation groove (6), and the other end of the compression springs (12) is fixedly connected to the fixing plate (14) of the telescopic tube (13). Above, the fixing plate (14) on the other side of the telescopic tube (13) is provided with a siphon balance hole (15), the siphon balance hole (15) and the siphon balance ball set in the D-shaped drip irrigation channel (3) (16) is connected, and the siphon balance ball (16) is filled with clean water; A fixing seat (17) is also fixedly installed on the fixing plate (14) connected with the compression spring (12), and a first-level sleeve (18) is fixedly connected to the fixing seat (17). The cylinder (18) is movably sleeved in the secondary sleeve (19), a telescopic spring (20) is fixedly installed between the primary sleeve (18) and the secondary sleeve (19), and the secondary sleeve One end of the cylinder (19) away from the primary sleeve (18) is fixedly connected with the drip irrigation slot blocking plate (21), and the drip irrigation slot blocking plate (21) is movably arranged in the drip irrigation slot (6). The barrel (18) and the secondary sleeve (19) are movably arranged in the telescopic channel (22), a sealing sleeve (23) is fixedly installed in the telescopic channel (22), and the primary sleeve (18) is movably inserted into the telescopic channel (22). Set in the sealing sleeve (23). 2. A drip irrigation device for water and fertilizer integration according to claim 1, characterized in that: bolt holes (24) are provided on the sealing cover (2), and bolt holes (24) are provided on the drip irrigation pipe (1) There are threaded holes (25) matched with the bolt holes (24), and the sealing cover body (2) is bolted to the drip irrigation pipe (1). 3. A drip irrigation device for water and fertilizer integration according to claim 1, characterized in that: the sealing cover (2) is provided with a drip irrigation hole (26) matched with the drip irrigation groove (6), so The drip irrigation hole (26) is in the shape of a horn hole. 4. A drip irrigation device for water and fertilizer integration according to claim 1, characterized in that: the drip irrigation pipe (1) is fixedly installed with threaded pipes (27) on both sides, and the threaded pipes (27) on both sides are fixedly installed. 27) Threaded connection with the irrigation pipe (28).

Images