CN214939929U

CN214939929U - Concealed pipe drainage device

Info

Publication number: CN214939929U
Application number: CN202121618985.6U
Authority: CN
Inventors: 张卫华; 张雷
Original assignee: Shaanxi Provincial Land Engineering Construction Group Co Ltd
Current assignee: Shaanxi Provincial Land Engineering Construction Group Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-11-30
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a be used for soil drainage field, concretely relates to hidden pipe drainage device for clay matter soil drainage, including drain pipe and the inside toper box with a net of part embedding drain pipe, toper box with a net includes box with a net point portion and box with a net bottom, the box with a net point portion is filled with the first metalling of useful nylon cloth parcel, the box with a net bottom is filled with the second metalling that the size is greater than first metalling, thereby it is regional to form the grit that the hydroscopicity is less than upper clay matter soil, play the effect of adjusting drainage rate, the infiltration of water is delayed under the unsaturated condition of soil body water content, because the great aperture of grit under the saturated condition of moisture, accelerate the discharge of moisture, and play certain filter effect to rivers, reduce soil erosion, avoid blocking the drain pipe along with the silt of rivers discharge, soil body stability has been protected.

Description

Concealed pipe drainage device

Technical Field

The utility model relates to a terraced fields drainage field, concretely relates to hidden pipe drainage device for clay soil terraced fields drainage.

Background

In the field of mountain land, the conventional method is to change the original sloping field into the terrace, so as to improve the cultivation condition. After the terrace is changed, the slope in the land is reduced, thereby increasing the infiltration amount of surface runoff and reducing the ground scouring. However, at this time, the total amount of water stored in the soil body increases, and a large drainage pressure is encountered. In a common drainage mode, drainage pipelines are buried in a field ridge or a side slope to drain soil.

However, in the clay texture area with more precipitation, the following problems exist: in the period of low precipitation, the moisture in the terrace soil body is continuously discharged under the action of gravity, which is not beneficial to the maintenance of the soil moisture; when the precipitation is more and the soil body water content is in the saturation state, the relative speed of drainage is slower again, leads to the soil body dead weight too big, causes unfavorable influence to the stability of terraced fields.

In addition, the common drain pipe that punches on the market leads to the fact the jam because of silt is piled up easily, influences drainage efficiency to can cause soil erosion and water loss.

SUMMERY OF THE UTILITY MODEL

Not enough to the above-mentioned in the current, the utility model provides a hidden pipe drainage device has solved whether the water content that current drain pipe can not be according to clayey matter terraced fields soil is saturated, the problem of control drainage speed.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the utility model provides a hidden pipe drainage device, its characterized in that includes the inside toper box with a net of drain pipe and partial embedding drain pipe, and toper box with a net divide into box with a net tip portion and box with a net bottom, and the mesh diameter of this toper box with a net is not more than 2cm to at box with a net tip intussuseption fill with the first rubble layer of passing through nylon cloth parcel, at box with a net bottom intussuseption fill with a second rubble layer, second rubble layer size is greater than the size of first rubble layer.

Further, the length of box with a net tip equals with the length of box with a net bottom to box with a net tip imbeds the inside of drain pipe completely.

First metalling and second metalling both form the grit region in the toper box with a net, and this regional hydroscopicity is less than upper clay matter soil to the infiltration of stagnant water under the unsaturated condition of soil body water content is because the hole of grit is great under the saturated condition of moisture, can accelerate the discharge of moisture, and play certain filter effect, reduce soil erosion and water loss to water, avoid blockking up the drain pipe along with moisture exhaust silt.

Further, the diameter of the first crushed stone layer is 2mm-20mm, and the diameter of the second crushed stone layer is 2cm-5 cm.

Preferably, the length of the conical net cage is 50cm-100cm, so that a large enough sandstone area can be formed, and the control on the drainage rate of soil on the upper part of the drainage device is enhanced.

Furthermore, the conical net cage is made of an anti-corrosion alloy material, so that the strength and the service life of the conical net cage are improved, and the phenomenon that the filler falls out of the conical net cage due to corrosion to damage the structure of the whole device and influence the drainage efficiency is avoided.

Further, the diameter of the end face, far away from the drain pipe, of the bottom of the net cage is 1.5-2 times of the diameter of the drain pipe.

Preferably, the drain pipe is made of PVC materials, so that the drain pipe is durable and the cost is obviously reduced.

The utility model has the advantages that: this scheme is through the unique setting of concealed conduit drainage device structure, can be according to whether saturated according to the water content of clay matter terraced fields soil, adjusts drainage rate, accelerates drainage rate when accomplishing the water content saturation, reduces drainage rate when water content is unsaturated to the soil body stability has been protected, and the utility model discloses simple structure, manufacturing cost is lower, is fit for using on a large scale.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic view of a concealed pipe drainage device;

in the figure, 1, a drain pipe, 2, a conical net cage, 3, a net cage tip portion, 4 and a net cage bottom portion.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.

The technical features of this solution are described below with reference to fig. 1:

as shown in fig. 1, the hidden pipe drainage device provided by the scheme comprises a drainage pipe 1 and a conical net cage 2 embedded in the drainage pipe 1, wherein the conical net cage 2 comprises a net cage tip portion 3 and a net cage bottom portion 4, the diameter of a mesh hole is not more than 2cm, a first gravel layer wrapped by nylon cloth is filled in the net cage tip portion 3, a second gravel layer is filled in the net cage bottom portion 4, and the size of the second gravel layer is larger than that of the first gravel layer.

Further, the length of the net cage tip portion 3 is equal to the length of the net cage bottom portion 4, and the net cage tip portion 3 can be completely embedded inside the drain pipe 1.

The diameter of the first gravel layer is 2-20 mm, the diameter of the second gravel layer is 2-5 cm, the first gravel layer and the second gravel layer form a gravel area in the conical net cage, the water absorption of the area is smaller than that of the clay soil on the upper layer, therefore, the infiltration of the delayed water under the condition that the water content of the soil on the upper layer is unsaturated can be accelerated, the water can be drained quickly due to the fact that the pores of the gravel are large under the condition that the water is saturated, a certain filtering effect is achieved on the water, water and soil loss is reduced, and the water drain pipe is prevented from being blocked by silt discharged along with the water.

When the drainage device is implemented, the length of the conical net cage is preferably 50cm-100cm, so that a large enough gravel area can be formed, and the control on the drainage rate of the soil body on the upper part of the drainage device is enhanced.

The conical net cage 2 can be made of stainless steel or galvanized steel wires, so that the strength and the service life of the conical net cage are improved, and the phenomenon that the filler falls out of the conical net cage due to corrosion to damage the structure of the whole device and influence the drainage efficiency is avoided.

Further, the diameter of the end face, far away from the drain pipe 1, of the bottom 4 of the net cage is 1.5-2 times of the diameter of the drain pipe 1.

The material of the preferred drain pipe 1 of this scheme is PVC material, and is with low costs, and intensity is high, durable.

The use of the concealed pipe drainage device of the scheme is described in the following with reference to fig. 1:

firstly, filling a first gravel layer which is wrapped by nylon cloth and has the diameter within the range of 2mm-20mm in the net cage tip part 3, filling gravel with the diameter within the range of 2cm-5cm in the net cage bottom part 4, then embedding the net cage tip part 3 of the conical net cage 2 in the drain pipe, and finally installing the first gravel layer and the drain pipe below a soil layer which needs to be drained in clay soil, wherein one end, far away from the net cage bottom part, of the drain pipe 1 is connected with the outside.

To sum up, the utility model discloses can adjust the permeation rate of clay matter terraced fields soil, improve drainage rate when soil water content is great to can avoid silt to cause the jam to the drain pipe, when soil water content is less, slow down the speed of drainage, protect the stability of the soil body, and the utility model discloses simple structure, low in cost has good application prospect.

Claims

1. The utility model provides a hidden pipe drainage device, its characterized in that includes drain pipe (1) and partial embedding the inside toper box with a net (2) of drain pipe (1), the aperture of toper box with a net (2) is not more than 2cm, toper box with a net (2) is including box with a net point portion (3) and box with a net bottom (4), box with a net point portion (3) intussuseption is filled with the first metalling through the nylon cloth parcel, box with a net bottom (4) intussuseption is filled with the second metalling, the second metalling size is greater than the size of first metalling.

2. The concealed pipe drainage device according to claim 1, wherein the length of the net cage tip portion (3) is equal to the length of the net cage bottom portion (4), and the net cage tip portion (3) is completely embedded inside the drainage pipe (1).

3. The concealed pipe drainage device according to claim 1, wherein the diameter of the first crushed stone layer is 2mm to 20mm, and the diameter of the second crushed stone layer is 2cm to 5 cm.

4. A hidden pipe drainage apparatus according to claim 3, characterized in that the length of the conical net cage (2) is 50cm-100 cm.

5. The concealed pipe drainage device according to claim 1, wherein the conical net cage (2) is made of rust-proof metal.

6. The hidden pipe drainage device as claimed in claim 1, wherein the diameter of the end surface of the net cage bottom (4) far away from the drainage pipe (1) is 1.5-2 times of the diameter of the drainage pipe (1).

7. A concealed pipe drainage device according to claim 1, wherein the drainage pipe (1) is a PVC pipe.