CN108668855B

CN108668855B - Agricultural water-saving drip irrigation device

Info

Publication number: CN108668855B
Application number: CN201810380697.8A
Authority: CN
Inventors: 王晓倩
Original assignee: Institute of Laser and Optoelectronics Intelligent Manufacturing of Wenzhou University
Current assignee: Inner Mongolia Zhaofengnian Water Resources And Hydropower Engineering Co ltd
Priority date: 2018-04-25
Filing date: 2018-04-25
Publication date: 2020-03-24
Anticipated expiration: 2038-04-25
Also published as: CN108668855A

Abstract

The invention belongs to the technical field of agricultural equipment, and particularly discloses an agricultural water-saving drip irrigation device which sequentially comprises a connector, a middle capillary and an anchor head, wherein a water inlet pipe is arranged at the top of the connector, a first water passing plate is arranged in the water inlet pipe, and a first water passing hole is formed in the first water passing plate; the middle capillary is hermetically connected with the connector, the inner diameter of the middle capillary is gradually reduced from bottom to top, a connecting rod is arranged in the middle capillary, and the outer diameter of the connecting rod is gradually reduced from bottom to top; the middle capillary is in threaded connection with the anchor head, a pressure spring is arranged at the bottom of the connecting rod, and the connecting rod is fixedly connected with the anchor head through the pressure spring. The drip irrigation device is not easy to block and topple after being inserted into soil, and is suitable for underground drip irrigation in regions with extreme drought and water shortage.

Description

Agricultural water-saving drip irrigation device

Technical Field

The invention belongs to the technical field of agricultural equipment, and particularly discloses an agricultural water-saving drip irrigation device.

Background

Drip irrigation is the local irrigation of crops by delivering water through plastic pipes to the roots of crops through orifices or drippers on capillaries with the diameter of about 10 mm. It is the most effective water-saving irrigation mode in arid water-deficient areas at present, and the water utilization rate can reach 95%. Compared with spray irrigation, the drip irrigation has higher water-saving and yield-increasing effects, and if the drip irrigation is combined with fertilization, the fertilizer efficiency can be doubled or more, so that the drip irrigation is suitable for irrigating fruit trees, vegetables, cash crops and greenhouses.

As the inner diameter of the capillary or the dripper is small and is very easy to block, most agricultural water-saving drip irrigation devices in the prior art are arranged above the ground to carry out drip irrigation on the position of crops close to the root, and because the ground surface temperature of the extremely arid water-deficient place is high, the water dripped to the ground surface does not permeate into the soil and is evaporated into the air, the drip irrigation mode is not suitable for the extremely arid water-deficient place; in addition, due to the reason of water quality, the capillary and the dripper in the prior art are easy to scale and block after being used for a long time, thereby influencing the service life of the drip irrigation device.

Disclosure of Invention

The invention aims to provide an agricultural water-saving drip irrigation device, which aims to solve the problem that the drip irrigation device is easy to block after being inserted into soil.

In order to achieve the purpose, the basic scheme of the invention is as follows: the agricultural water-saving drip irrigation device sequentially comprises a connector, a middle capillary and an anchor head, wherein a water inlet pipe is arranged at the top of the connector, a first water passing plate is arranged in the water inlet pipe, and a first water passing hole is formed in the first water passing plate; the middle capillary is hermetically connected with the connector, the inner diameter of the middle capillary is gradually reduced from bottom to top, and a connecting rod matched with the inner hole of the middle capillary is arranged in the middle capillary; the middle capillary is in threaded connection with the anchor head, and the bottom of the connecting rod is fixedly connected with the anchor head.

The working principle and the beneficial effects of the basic scheme are as follows:

when the drip irrigation device is adopted, the middle capillary and the anchor head are screwed tightly through threads, and one end of the drip tube device with the anchor head is inserted into soil and then lifted upwards slightly, so that the whole device is stably inserted into the soil. The middle capillary is rotated to be screwed out from the anchor head, the connecting rod moves upwards relative to the anchor head and the middle capillary at the moment, and a water leakage gap is formed between the middle capillary and the connecting rod. The connector is connected with an external water source, water firstly enters the connector through a first water passing hole in a first water passing plate, then enters the soil surface through a water leakage gap between the connecting rod and the middle capillary, and the gap between the middle capillary and the anchor head is filled below the soil surface to drip the root of the plant.

When the anchor head in the drip filling device is inserted into soil, not only can the ground breaking effect be achieved, but also the situation that the soil enters the middle capillary and blocks the middle capillary can be effectively prevented; in addition, this drip irrigation device's anchor head inserts behind the soil, can play stable supporting role to whole drip irrigation device (because the local soil of arid lack of water is looser, and the drip irrigation device among the prior art inserts behind the soil, takes place to empty easily to influence the effect of driping irrigation).

Further, the internal diameter of the first water passing hole is less than or equal to 10mm, and the drip irrigation speed of the device to the plant root can be effectively controlled by limiting the size of the internal diameter of the first water passing hole.

Furthermore, an extrusion device is arranged on the water inlet pipe and comprises a shell, a second water passing plate and at least two arc-shaped wedge-shaped blocks, the shell is annularly sleeved outside the water inlet pipe, the contact part of the inner wall of the shell and the water inlet pipe has elasticity, a sealed cavity is formed in the shell, and petroleum ether is filled in the sealed cavity; the inner side wall of the water inlet pipe which is contacted with the shell is fixedly connected with the arc-shaped wedge-shaped block; the second crosses between water board locates middle hollow billet and the arc wedge, and it has the second to cross the water hole to open on the water board to cross the second, the center line that the water board was crossed to the second coincides with the center line of middle hollow billet, the second crosses the vertical sliding connection of water board and is in the water pipe, the upper portion that the water board was crossed to the second can vertical sliding connection in first water hole to with the first inner wall contact in crossing the water hole, the vertical sliding connection of lower part that the water board was crossed to the second is on the arc wedge.

When daytime outside temperature is higher, the petroleum ether in the shell is heated and expands, and the lateral wall of inlet tube receives the extrusion, and the arc wedge piece more than two draws close each other and extrudees the second and crosses the water board, orders about the second and crosses the vertical rebound of water board to vertical sliding connection gets into first water through downthehole. When the second water passing plate enters the first water passing hole, the second water passing plate can push out scale in the first water passing hole or on the side wall of the first water passing hole, so that the first water passing hole is dredged; in addition, the second crosses after the water board gets into first water hole of crossing, and inside the water hole entering connector was crossed through the second from first inlet tube entering, the size in water hole was crossed to the second was less than the size of first inlet opening, and when ambient temperature was higher this moment, this device reduced the speed of driping irrigation to the plant root. Through utilizing natural environment temperature, when the speed of driping irrigation to the plant root changed, realized that the second crosses the water board and to the mediation in first water hole of crossing, prevented the first emergence of crossing the downthehole scale deposit condition of water, the effectual life who prolongs this device.

Further, the lateral wall of second board of crossing water is equipped with the storage chamber. The water board is crossed to the second scrapes the back to the incrustation scale of first water hole lateral wall of crossing, and the incrustation scale after scraping gets into to store the intracavity and collects.

Furthermore, hinged plates are symmetrically arranged on two sides of the anchor head and are tensioned with the anchor head through springs. The arrangement of the hinged plate can further ensure that the device is vertically and stably inserted into soil.

Further, still be equipped with second mediation mechanism in the inlet pipe, second mediation mechanism includes fixing base and bracing piece, the below of extrusion device is located to the fixing base, the fixed connection of bracing piece is on the fixing base, the central line of bracing piece and the coincidence of the central line in water hole is crossed to the second, and when the second crossed the water board and did not vertical rebound, the upper portion of bracing piece was in the second crossed the water hole. The effect of bracing piece is mainly that the mediation second crosses the water hole, prevents that the second from crossing the water hole scale deposit and blockking up.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the connecting joint 1, the middle capillary 2, the connecting rod 21, the anchor head 3, the hinged plate 31, the spring 32, the water inlet pipe 4, the first water passing plate 41, the first water passing hole 42, the extruding device 5, the shell 51, the second water passing plate 52, the arc wedge-shaped block 53, the sealed cavity 54, the storage cavity 55, the second water passing hole 56, the second dredging mechanism 6, the fixed seat 61 and the supporting rod 62.

As shown in figures 1 and 2, the agricultural water-saving drip irrigation device sequentially comprises a connector 1, a middle capillary 2 and an anchor head 3, wherein the middle capillary 2 is in threaded connection with the anchor head 3. The top of connector 1 is equipped with inlet tube 4, and inlet tube 4 is connected with external water source. A first water passing plate 41 is arranged in the water inlet pipe 4, and a first water passing hole 42 is formed in the first water passing plate 41; middle hollow billet 2 and connector 1 sealing connection, the internal diameter of middle hollow billet 2 upwards reduces gradually from bottom to top, is equipped with connecting rod 21 in the middle hollow billet 2, and the external diameter of connecting rod 21 matches with the internal diameter of middle hollow billet 2, and the external diameter of connecting rod 21 also upwards reduces gradually from bottom to top, the bottom and the anchor head 3 fixed connection of connecting rod 21.

Because middle capillary 2 and anchor head 3 threaded connection, the bottom and the anchor head 3 fixed connection of connecting rod 21, so rotate middle capillary 2, middle capillary 2 can be for anchor head 3, the vertical rebound of connecting rod 21, can form the clearance of leaking between middle capillary 2 and the connecting rod 21. Water entering from the water inlet pipe 4 sequentially enters into soil through the connector 1, the water leakage gap between the middle capillary 2 and the connecting rod 21 and the gap between the middle capillary 2 and the anchor head 3.

The internal diameter less than or equal to 10mm in first water hole 42 of crossing, the external water source that this device is connected need not to possess pressure, just can effectual control this device to the speed of driping irrigation of plant root through the internal diameter size that restricts first water hole 42 of crossing.

The water inlet pipe 4 is provided with an extrusion device 5, the extrusion device 5 comprises a shell 51, a second water passing plate 52 and at least two arc-shaped wedge-shaped blocks 53, the shell 51 is annularly sleeved outside the water inlet pipe 4, the contact part of the inner wall of the shell 51 and the water inlet pipe 4 is elastic, a sealing cavity 54 is formed in the shell 51, petroleum ether is filled in the sealing cavity 54, and the boiling point of the petroleum ether is 40-80 ℃; the inner side wall of the water inlet pipe 4 contacting with the outer shell 51 is fixedly connected with the arc-shaped wedge blocks 53, in this embodiment, the number of the arc-shaped wedge blocks 53 is preferably two, and the two arc-shaped wedge blocks 53 are symmetrically arranged along the radial direction of the water inlet pipe 4. The second water passing plate 52 is vertically and slidably connected in the water inlet pipe 4, the second water passing plate 52 is arranged between the middle capillary 2 and the arc-shaped wedge-shaped block 53, a second water passing hole 56 is formed in the second water passing plate 52, the central line of the second water passing plate 52 is overlapped with the central line of the middle capillary 2, the upper part of the second water passing plate 52 can be vertically and slidably connected in the first water passing hole 42 and is contacted with the inner wall of the first water passing hole 42, the lower part of the second water passing plate 52 is vertically and slidably connected on the arc-shaped wedge-shaped block 53, when the external temperature is higher, petroleum ether in the sealed cavity 54 is heated and volatilized, the volume is expanded, the inner wall of the shell 51 is extruded, the inner wall of the shell 51 extrudes the water inlet pipe 4, the water inlet pipe 4 extrudes the two arc-shaped wedge-shaped blocks 53, when the two arc-shaped wedge-shaped blocks 53 are close to each other, the second water passing plate 52 is extruded by the two arc-, during the movement of the second water passing plate 52, scale in the first water passing holes 42 is scraped.

The side wall of the second water passing plate 52 is provided with a storage cavity 55. After the second water passing plate 52 scrapes the scale on the side wall of the first water passing hole 42, the scraped scale enters the storage cavity 55 to be collected.

Still be equipped with second mediation mechanism 6 in the inlet tube 4, second mediation mechanism 6 includes fixing base 61 and bracing piece 62, and the below of extrusion device 5 is located to fixing base 61, and the fixed connection of bracing piece 62 is on fixing base 61, and the central line of bracing piece 62 coincides with the central line of second water hole 56, and when the second was crossed the vertical rebound of water board 52, the upper portion of bracing piece 62 was in the second water hole 56. The support rod 62 mainly acts to dredge the second water through hole 56 and prevent the second water through hole 56 from being blocked by scales.

The two sides of the anchor head 3 are symmetrically provided with hinge plates 31, and the hinge plates 31 are tensioned with the anchor head 3 through springs 32.

When the drip irrigation device is adopted, the middle capillary 2 and the anchor head 3 are screwed through threads, one end of the drip tube device with the anchor head 3 is inserted into soil, the free ends of the hinged plates 31 are close to each other during insertion, then the whole device is lifted upwards slightly, and at the moment, the free ends of the two hinged plates 31 are far away from each other under the action of soil resistance, so that the whole device is stably stabbed into the soil. The middle capillary 2 is rotated to unscrew the middle capillary 2 from the anchor head 3, and at the moment, the connecting rod 21 moves upwards relative to the anchor head 3 and the middle capillary 2. And finally, connecting the connector 1 with an external water source.

When the temperature is lower late, water firstly passes through the first water passing hole 42 on the first water passing plate 41 and enters the connector 1, then passes through the gap between the connecting rod 21 and the middle capillary 2, and the gap between the middle capillary 2 and the anchor head 3 enters the soil surface to be lower than the ground surface, so that the root of the plant is subjected to drop irrigation.

When daytime outside temperature is higher, the petroleum ether in the shell 51 is heated and expands, because the inner wall of shell 51 and the contact department of inlet tube 4 have elasticity, so the lateral wall of inlet tube 4 receives the extrusion, and two arc wedge-shaped pieces 53 draw close each other and extrude the second and cross water sheet 52, order about the second and cross the vertical rebound of water sheet 52 to vertical sliding connection gets into in the first water hole 42 of crossing. When the second water passing plate 52 enters the first water passing hole 42, the second water passing plate 52 can clean the scale in the first water passing hole 42 or on the side wall of the first water passing hole 42, so as to dredge the first water passing hole 42, and the scraped scale enters the storage cavity 55 to be collected; in addition, after the second water passing plate 52 enters the first water passing hole 42, the water entering from the first water inlet pipe 4 enters the connector 1 through the second water passing hole 56, the size of the second water passing hole 56 is smaller than that of the first water inlet hole, and at the moment, when the external temperature is higher, the drip irrigation speed of the device to the root of the plant is reduced. The arrangement is to ensure the full utilization of water by the plants, and to drip the roots of the plants when the external temperature is higher in extremely arid regions, which is not beneficial to the growth of the plants and the utilization of water resources.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The agricultural water-saving drip irrigation device is characterized by sequentially comprising a connector, a middle capillary and an anchor head, wherein a water inlet pipe is arranged at the top of the connector, a first water passing plate is arranged in the water inlet pipe, and a first water passing hole is formed in the first water passing plate; the middle capillary is hermetically connected with the connector, the inner diameter of the middle capillary is gradually reduced from bottom to top, and a connecting rod matched with the inner hole of the middle capillary is arranged in the middle capillary; the middle capillary is in threaded connection with the anchor head, the bottom of the connecting rod is fixedly connected with the anchor head, the inner diameter of the first water passing hole is smaller than or equal to 10mm, the water inlet pipe is provided with an extrusion device, the extrusion device comprises a shell, a second water passing plate and at least two arc-shaped wedge-shaped blocks, the shell is annularly sleeved outside the water inlet pipe, the contact part of the inner wall of the shell and the water inlet pipe has elasticity, a sealed cavity is formed in the shell, and petroleum ether is filled in the sealed cavity; the inner side wall of the water inlet pipe which is contacted with the shell is fixedly connected with the arc-shaped wedge-shaped block; the second crosses the water board and locates between middle hollow billet and the first water hole of crossing, and it has the second to cross the water hole to open on the water board to cross the second, the center line that the water board was crossed to the second coincides with the center line of middle hollow billet, the second crosses the vertical sliding connection of water board and is in the water pipe, the upper portion that the water board was crossed to the second can vertical sliding connection in first water hole of crossing to with the first inner wall contact of crossing the water hole, the vertical sliding connection of lower part that the water board was crossed to the second is on arc wedge.

2. The agricultural water-saving drip irrigation device according to claim 1, wherein the side wall of the second water passing plate is provided with a storage chamber.

3. The agricultural water-saving drip irrigation device according to claim 2, wherein hinge plates are symmetrically arranged on two sides of the anchor head, and the hinge plates are tensioned with the anchor head through springs.

4. The agricultural water-saving drip irrigation device according to claim 3, wherein a second dredging mechanism is further arranged in the water inlet pipe, the second dredging mechanism comprises a fixed seat and a supporting rod, the fixed seat is arranged below the extrusion device, the supporting rod is fixedly connected to the fixed seat, the central line of the supporting rod is overlapped with the central line of the second water passing hole, and when the second water passing plate does not vertically move upwards, the upper portion of the supporting rod is located in the second water passing hole.