CN214497429U

CN214497429U - Farmland drainage system

Info

Publication number: CN214497429U
Application number: CN202023167845.XU
Authority: CN
Inventors: 杨志文; 刘琼峰; 许晓玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-10-26
Anticipated expiration: 2030-12-25

Abstract

The utility model provides a farmland drainage system, its includes several drainage device, and this drainage device installs in the other escape canal in farmland, and this drainage device is from last to being equipped with dirt bed, sand bed, metalling and cement brick layer down in proper order, and this cement brick layer is equipped with drainage channel. The drainage system of the utility model solves the deposition problem of various mechanical drainage through the arrangement of the drainage device, reduces the mechanical consumption and saves the energy; the accumulated water in the sunned field is discharged quickly, the soil can be improved, the yield of the farmland can be increased, the labor input can be saved, and the input cost is recovered quickly. The drainage system has long service life, and is especially suitable for use in leveled deep mud field and cold soaking field.

Description

Farmland drainage system

Technical Field

The utility model relates to a drainage technique is irritated in the farmland, concretely relates to farmland drainage system.

Background

Drainage of farmland is an important means for preventing land degradation, reforming saline-alkali land and waterlogging low-yield farmland. For middle and low-yield farmland cultivated land caused by waterlogging damage, the most effective measure for increasing the production potential is to actively implement farmland drainage, waterlogging drainage and waterlogging removal. In view of land degradation and harm related to drainage at home and abroad, farmland drainage faces two major tasks of over-wet land drainage and saline-alkali land drainage. The drainage of the over-wet land aims to remove excessive moisture in the farmland, and requires that excessive surface water is removed and too high underground water level is reduced within a certain time, so that the soil has a proper water-gas ratio, normal growth of crops is met, and higher yield is obtained. The most common farmland drainage forms are open ditch drainage and closed pipe drainage, wherein the open ditch drainage cost is low, the construction is simple and convenient, the open ditch drainage form is the main drainage form in China, but the open ditch drainage form occupies more cultivated land, and is particularly obvious when the drainage distance is smaller. At present, open ditch drainage systems in China aim at drainage of stagnant water, most of the open ditch drainage systems are relatively large in space, and the purposes of drainage cannot be achieved due to long-term maintenance, so that reconstruction and new construction are urgently needed. Although the cost of the concealed pipe drainage is far higher than that of the open ditch, the concealed pipe drainage does not occupy cultivated land, and a large number of tests prove that the concealed pipe drainage has the advantages of improving soil structure, improving underground water quality and the like while draining stagnant water and removing stains and improving yield, and is widely applied in developed countries. The advantage of concealed conduit drainage combines various factors to make it have a great development space.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: aiming at the defects of the prior art, the farmland drainage system is provided.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a farmland drainage system, its characterized in that, it includes several drainage device, and this drainage device installs in the other escape canal in farmland, and this drainage device is from last to being equipped with loam layer, sand bed, metalling and cement brick layer down in proper order, and this cement brick layer is equipped with drainage channel.

The cement brick layer comprises a plurality of cement brick groups, each cement brick group comprises an upper cement brick and a lower cement brick which are butted, grooves are formed in the bottoms of the cement bricks, and after the cement brick layers are spliced by the plurality of cement brick groups, the two grooves of the upper cement brick and the lower cement brick of the plurality of cement brick groups are combined into the drainage channel of the cement brick layers. Preferably, the cement brick is provided with a round hole which is beneficial to carrying the cement brick hook.

The width and depth of the drainage device are determined according to the width and depth of the drainage ditch.

The drainage ditch comprises a first drainage ditch and a second drainage ditch, the ditch depth of the first drainage ditch is gradually changed from a central point to two sides by 70cm to 60cm, and the ditch depth of the second drainage ditch is gradually changed from a central point 9 to the outside of the dike by 70cm to 80 cm. When the depth of the second drainage ditch is 80cm, the thickness of each layer of the drainage device is as follows: the soil layer is 10cm, the sand layer is 16cm, the gravel layer is 30cm, and the cement brick layer is 24 cm.

One end of the drainage channel is externally connected with an exhaust pipe, and the exhaust pipe is a DVC pipe.

A drainage gate is arranged on the surface of a mud layer of the drainage device; the drainage end of the drainage channel of the drainage device is connected with a drainage pipe with a switch, and the drainage pipe extends out of the dike so as to be beneficial to draining water in the drainage channel out of the dike.

The utility model discloses a drainage system designs according to south paddy field soil, keeps off mud by the dirt bed, and the sand bed filters, and the metalling is limpid, and water is carried on the cement brick layer. The arrangement of the drainage device solves the problem of deposition of various mechanical drainage, reduces mechanical consumption and saves energy; the accumulated water in the sunned field is discharged quickly, the soil can be improved, the yield of the farmland is increased (at least 100 kilograms of the accumulated water per mu), the labor input can be saved, and the input cost is recovered quickly. The drainage system has long service life (the drainage device can be flushed every three to five years and also can prolong the service life), and is particularly suitable for field-leveled deep mud fields, cold-dipped paddy fields and accumulated paddy fields.

Drawings

Fig. 1 is a sectional view of the structure of the drainage device of the present invention.

Fig. 2 is a schematic structural diagram of the cement brick of the present invention.

Fig. 3 is a distribution diagram of the drainage device installed in a farmland.

Detailed Description

The utility model relates to a farmland drainage system, it includes several drainage device, please see fig. 1, and this drainage device is from last to being equipped with dirt bed 1, sand bed 2, metalling 3 and cement brick layer 4 down in proper order, and this cement brick layer 4 is equipped with drainage channel 41. This cement brick layer 4 comprises several cement brick group 42, and this cement brick group 42 comprises two upper and lower butted cement bricks 421, and this cement brick 421 bottom is equipped with recess 422 (refer to fig. 2), and after several cement brick group 42 splices into cement brick layer 4, two recesses 422 of two upper and lower cement bricks 421 of this several cement brick group 42 then synthesize this cement brick layer 4's drainage channel 41. The water drained from the farmland sequentially passes through the soil horizon 1, the sand horizon 2 and the rubble layer 3, then enters the drainage channel 41 of the cement brick layer 4 through the gap 43 between the cement brick groups, and flows out of the drainage channel 41. Preferably, the cement brick 421 is provided with a circular hole 423 to facilitate the handling of the cement brick hook.

When this drainage system installation, can install drainage device in the other escape canal in farmland, the escape canal digs the field bank side that has ponding on the other side in farmland, and drainage device's width and degree of depth coordinate the width and the degree of depth in escape canal are suitable. Referring to fig. 3, for example, two adjacent farmlands are installed in the first drainage ditch 7 between the farmlands and the roadbed 6 beside the two farmlands 5 and the second drainage ditch 8 between the two farmlands 5. The depth of the first drainage ditch 7 is from deep to shallow from the central point 9 to both sides, and the depth of the second drainage ditch 8 is from shallow to deep from the central point 9 to the outside of the bank, so that the drainage channel 41 of the drainage device is obliquely arranged in the first drainage ditch 7 and the second drainage ditch 8, and water drained from farmland enters the first drainage ditch 7, enters the drainage channel 41 through the drainage device, gathers at the central point 9, and flows out along the drainage channel 41 of the drainage device in the second drainage ditch 8, or water drained from farmland enters the second drainage ditch 8, enters the drainage channel 41 through the drainage device in the second drainage ditch 8, and flows out (the direction indicated by the arrows in the first and second drainage ditches in fig. 3 is the water flow direction). In this embodiment, the depth of the first drainage ditch 7 is gradually changed from the central point 9 to both sides by 70cm to 60cm, the depth of the second drainage ditch 8 is gradually changed from the central point 9 to the outside of the bank by 70cm to 80cm, and preferably, when the depth of the drainage device is 80cm, the thickness of the soil layer 1 is 10cm, the thickness of the sand layer 2 is 16cm, the thickness of the gravel layer 3 is 30cm, and the thickness of the cement brick layer 4 is 24 cm. Preferably, the drain channel 41 of the drain device is externally connected with the exhaust pipe 10 at the outer side of the first drain ditch 7, i.e. at the relatively shallow position of the drain ditch, and the exhaust pipe 10 can be made of DVC pipe. It should be noted that this embodiment is only illustrative of one form of installation of the drainage system, depending on the field distribution.

Preferably, when the amount of water in the farmland is too large, the drainage device is provided with a drainage gate (not shown) on the surface of the soil layer, and drainage is controlled remotely.

Preferably, the drainage end of the drainage channel 41 of the drainage device is externally connected with a drainage pipe 11 with a switch, and the drainage port of the drainage pipe 11 extends out of the dike, so as to facilitate drainage of water in the drainage channel 41 out of the dike.

Claims

1. The utility model provides a farmland drainage system, its characterized in that, it includes several drainage device, and this drainage device installs in the other escape canal in farmland, and this drainage device is from last to being equipped with dirt bed (1), sand bed (2), metalling (3) and cement brick layer (4) down in proper order, and this cement brick layer (4) are equipped with drainage channel (41).

2. A farmland drainage system as claimed in claim 1, wherein said cement brick layer (4) is composed of a plurality of cement brick groups (42), said cement brick groups (42) are composed of two upper and lower butted cement bricks (421), and the bottoms of said cement bricks (421) are provided with grooves (422), when said plurality of cement brick groups (42) are spliced into said cement brick layer (4), said two grooves (422) of said two upper and lower cement bricks (421) of said plurality of cement brick groups (42) are combined into said drainage channel (41) of said cement brick layer (4).

3. A drainage system for agricultural fields as claimed in claim 2, wherein said cement blocks (421) are provided with circular holes (423) for facilitating the handling of the cement block hooks.

4. An agricultural drainage system according to claim 1, wherein the width and depth of the drainage means is dependent on the width and depth of the drain.

5. A farmland drainage system as claimed in claim 4, wherein said drainage ditch comprises a first drainage ditch (7) and a second drainage ditch (8), the depth of the first drainage ditch (7) being 70cm to 60cm from the center point (9) to both sides, and the depth of the second drainage ditch (8) being 70cm to 80cm from the center point (9) to the outside of the bank.

6. An agricultural drainage system according to claim 5, wherein the thickness of each layer of the drainage device is as follows when the depth of the second drainage ditch (8) is 80 cm: the soil layer (1) is 10cm, the sand layer (2) is 16cm, the gravel layer (3) is 30cm, and the cement brick layer (4) is 24 cm.

7. An agricultural drainage system according to claim 1, wherein one end of the drainage channel (41) is externally connected to the exhaust pipe (10).

8. An agricultural drainage system according to claim 7, wherein the vent pipe (10) is a DVC pipe.

9. An agricultural drainage system as claimed in claim 1, wherein the drainage means has drainage gates mounted on the surface of the dirt layer (1).

10. An agricultural drainage system according to claim 1, wherein the drainage end of the drainage channel (41) of the drainage device is connected to a drain pipe (11) with a switch, and the drain pipe (11) extends out of the dike to facilitate drainage of water in the drainage channel (41) out of the dike.