Drainage device for severe secondary salinization area

By designing a connecting structure between the main drainage pipe and branch drainage pipes in areas with severe secondary salinization, and equipping them with protective frames and filter cloths, combined with water pumps and locking structures, the problems of complex construction and easy clogging of existing drainage devices in areas with severe secondary salinization have been solved. This has enabled efficient discharge of water and salt, extended the life of the pipes, and reduced the soil salinity.

CN224213267UActive Publication Date: 2026-05-08NINGXIA HUI AUTONOMOUS REGION WATER CONSERVANCY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA HUI AUTONOMOUS REGION WATER CONSERVANCY RES INST
Filing Date
2025-05-30
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing open ditch drainage and underground pipe drainage systems have problems such as complex construction, large footprint, easy collapse, low drainage efficiency and pipe blockage in areas with severe secondary salinization, and cannot effectively reduce the salt content in the soil.

Method used

A drainage device for areas with severe secondary salinization was designed. The device consists of a main drainage pipe and branch drainage pipes connected to form a collection network. A protective frame is installed on the outside and a filter cloth is installed on the inside. A water pump and a locking structure are used to stabilize the position of the water pump. A flow hole and a water level monitoring device are installed in the collection well to achieve rapid and effective discharge of water and salt.

Benefits of technology

It enables efficient drainage in areas with severe secondary salinization, extends the service life of pipes, prevents blockages, reduces soil salinity, and ensures the stable operation of the drainage system.

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Abstract

The utility model provides a drainage device for a severe secondary salinization area, which relates to the technical field of soil improvement and drainage and comprises a water collecting well, a group of flow holes are arranged at the bottom of the water collecting well, two symmetrically distributed main drainage pipelines are mounted at the positions of the flow holes, and two branch drainage pipelines are respectively mounted on two sides of the main drainage pipelines. The main drainage pipeline is communicated with the interior of the water collecting well, and the main drainage pipeline and the branch drainage pipelines are matched with each other to jointly form a drainage structure. The first protection frame and the second protection frame are matched with each other to form the protection structure, the main drainage pipeline and the branch drainage pipelines are wrapped in the protection structure, the drainage pipelines are prevented from being damaged by external force, the service life of the drainage pipelines is prolonged, and filter cloth arranged on the inner side of the protection structure is made of geotechnical cloth materials with good water permeability and a good filtering effect. Fine particles in the soil can be further filtered, and the situation that the fine particles enter a drainage pipeline to cause blockage is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of soil improvement and drainage technology, and in particular to a drainage device for areas with severe secondary salinization. Background Technology

[0002] Currently, the main method for treating severely secondary salinization areas is drainage to lower the groundwater level and reduce the salt content in the soil. However, existing drainage systems have some shortcomings, as follows:

[0003] Currently, the main drainage methods for areas with severe secondary salinization are open ditch drainage and underground pipe drainage. Although open ditch drainage is simple to construct and has a low cost, it cannot effectively and timely remove salt and excess water from the soil. It also has the problems of large land area, easy collapse, and low drainage efficiency.

[0004] Concealed drainage pipes come into direct contact with the soil during drainage. Fine particles and impurities in the soil can easily enter the drainage pipes with the water flow, causing blockages. Furthermore, the weight of the soil can deform the drainage pipes, thus shortening their service life.

[0005] Therefore, developing a drainage device for severely secondary salinized areas that is efficient, reliable, and capable of properly treating discharged water is of great practical significance. Utility Model Content

[0006] This utility model discloses a drainage device for severely secondary salinized areas. A filter cloth is installed on the inner side of the protective structure to further filter fine particles in the soil. A first protective frame and a second protective frame are installed on the outer side of the main drainage pipe and the branch drainage pipe to prevent the drainage pipe from being damaged by external forces. Excess water in the severely secondary salinized area will enter the pipe through the flow holes on the main drainage pipe and the branch drainage pipe and then collect in the collection well.

[0007] In a first aspect, this disclosure provides a drainage device for a severely secondary salinized area, specifically comprising: a collection well, a set of flow holes at the bottom of the collection well, two symmetrically distributed main drainage pipes installed at the flow holes, a branch drainage pipe installed on each side of the main drainage pipes, the main drainage pipes and the collection well being internally connected, the main drainage pipes and the branch drainage pipes cooperating to form a drainage structure, a first protective frame and a second protective frame installed on the outer sides of the main drainage pipes and the branch drainage pipes respectively, the first protective frame and the second protective frame cooperating to form a protective structure, a filter cloth installed on the inner side of the protective structure, a set of symmetrically distributed threaded rods installed on the upper inner side of the collection well, a water pump installed on the outer side of the threaded rods, a protective cover installed above the water pump, and a nut installed on the outer side of the threaded rods.

[0008] Furthermore, a stepped groove is provided above the water collection well, and a positioning block is provided on the upper part of the inner side of the water collection well. A positioning groove is provided on each side of the positioning block. The positioning groove has a rectangular structure, and the mounting plate of the water pump extends into the interior of the positioning groove.

[0009] Furthermore, a positioning sleeve is provided above the water pump, and the positioning sleeve extends into the interior of the protective cover.

[0010] Furthermore, a positioning groove is formed on one side of the threaded rod, and a mounting hole is formed on one side of the nut. The mounting hole is a cylindrical structure, and a locking pin is installed at the position of the mounting hole. One side of the locking pin is installed inside the positioning groove.

[0011] Furthermore, the positioning groove on one side of the threaded rod has a slot on each of the two inner sides. The slot is rectangular. A set of positioning protrusions is provided on one side of the locking pin, and the positioning protrusions extend into the inside of the slot. An opening slot is provided on one side of the locking pin.

[0012] Furthermore, a magnet with a mounting groove is installed on the outer side of the nut, and the nut and locking pin cooperate to form a locking structure.

[0013] Furthermore, an installation hole is opened on each side of the main drainage pipe, and a branch drainage pipe is installed at each of the installation holes.

[0014] Furthermore, a set of flow holes is opened on the basis of the main drainage pipe and the branch drainage pipe, and the main drainage pipe and the branch drainage pipe are interconnected.

[0015] Furthermore, the second protective frame is installed above the first protective frame. The first protective frame has a set of positioning blocks on each side, and the positioning blocks are rectangular structures with rounded corners. The second protective frame has a set of positioning grooves on each side, and the positioning grooves are rectangular structures. The positioning blocks extend into the interior of the positioning grooves.

[0016] This utility model provides a drainage device for areas with severe secondary salinization, which has the following beneficial effects:

[0017] The system consists of interconnected drainage pipes and branch drainage pipes forming a collection network, which is equipped with a set of flow holes to collect excess water from the soil in severely secondary salinized areas in a wide and rapid manner.

[0018] The first and second protective frames work together to form a protective structure that encloses the main drainage pipe and branch drainage pipes, preventing damage to the drainage pipes due to external forces, extending the service life of the drainage pipes, and ensuring the long-term stable operation of the drainage system.

[0019] The filter cloth installed inside the protective structure is made of geotextile material with good water permeability and excellent filtration effect. It can further filter fine particles in the soil, prevent these fine particles from entering the drainage pipe and causing blockage, and ensure smooth drainage.

[0020] A water pump is installed. When the water level in the collection well reaches a certain height, the water level monitoring device will promptly trigger the drainage pump to work. By continuously and effectively draining excess water from the soil, the salt in the soil can be carried out with the water, thereby reducing the salt content of the soil in areas with severe secondary salinization. The water pump is installed and fixed by a locking structure consisting of a threaded rod, nut, locking pin and magnet. The locking pin is set to prevent the nut from loosening. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0022] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0023] In the attached diagram:

[0024] Figure 1 A schematic diagram of the axial structure of the regional drainage device of this application after assembly is shown;

[0025] Figure 2 This application shows Figure 1 A schematic diagram of a partial axial side structure;

[0026] Figure 3 A top view schematic diagram of the cross-sectional structure of the water collection well and diversion structure of this application is shown;

[0027] Figure 4 A schematic diagram of the axial structure of the water pump and protective cover of this application is shown;

[0028] Figure 5 The diagram shows an axonometric view of the disassembled drainage structure and protective structure of this application;

[0029] Figure 6 An axial side view of the nut cross-section structure of this application is shown;

[0030] Figure 7 A cross-sectional schematic diagram of the threaded rod and nut structure of this application is shown;

[0031] Figure 8 This application shows Figure 1 A magnified structural diagram at point A;

[0032] Figure 9 This application shows Figure 5A magnified structural diagram at point B.

[0033] List of reference numerals

[0034] 1. Water collection well; 101. Threaded rod;

[0035] 2. Drainage structure; 201. Main drainage pipe; 202. Branch drainage pipe;

[0036] 3. Protective structure; 301. First protective frame; 302. Second protective frame;

[0037] 4. Filter cloth;

[0038] 5. Water pump; 501. Protective cover;

[0039] 6. Locking structure; 601. Nut; 602. Locking pin. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0041] Example 1: Please refer to Figures 1 to 9 :

[0042] This utility model proposes a drainage device for areas with severe secondary salinization, comprising: a collection well 1, a set of flow holes at the bottom of the collection well 1, two symmetrically distributed main drainage pipes 201 installed at the flow holes, and a branch drainage pipe 202 installed on each side of the main drainage pipes 201. The main drainage pipes 201 and the collection well 1 are internally connected. The main drainage pipes 201 and the branch drainage pipes 202 cooperate to form a diversion structure 2. The number of diversion structures 2 is increased or decreased according to the number of flow holes. The collection well 1 is used to collect the saline water discharged from the diversion structure 2. A set of flow holes is opened on the basis of the drainage pipe 202. The main drainage pipe 201 and the branch drainage pipe 202 are connected to each other. Through the above structural design, the main drainage pipe 201 and the branch drainage pipe 202 cooperate to form a collection network. After the main drainage pipe 201 and the branch drainage pipe 202 are buried in the soil, the excess water in the severely secondary salinized area can enter the pipe through the flow holes on the main drainage pipe 201 and the branch drainage pipe 202, and then collect into the collection well 1. This achieves effective collection and discharge of excess water in the severely secondary salinized area, and reduces the water content and salt content of the severely secondary salinized area.

[0043] In this embodiment of the disclosure, reference is made to Figures 1 to 9 As shown, a first protective frame 301 and a second protective frame 302 are respectively installed on the outer side of the main drainage pipe 201 and the branch drainage pipe 202. The first protective frame 301 and the second protective frame 302 cooperate to form a protective structure 3. The second protective frame 302 is installed above the first protective frame 301. A set of positioning blocks is provided on both sides of the first protective frame 301. The positioning blocks are rectangular structures with rounded corners. A set of positioning grooves is provided on both sides of the second protective frame 302. The positioning grooves are rectangular structures. The positioning blocks extend into the interior of the positioning grooves. The first protective frame 301 and the second protective frame 302 are respectively made of rigid materials in the prior art. The first protective frame 301 and the second protective frame 302 can be made of plastic or stainless metal. After the first protective frame 301 and the second protective frame 302 are connected, they cooperate to protect the main drainage pipe 201 and the branch drainage pipe 202, so as to avoid damage to the main drainage pipe 201 and the branch drainage pipe 202 caused by the squeezing force of the soil.

[0044] In this embodiment of the disclosure, reference is made to Figures 1 to 9As shown, a filter cloth 4 is installed on the inner side of the protective structure 3. The filter cloth 4 is made of geotextile material with good permeability and filtration effect, which is currently available in the technology. The function of the filter cloth 4 is to further filter fine particles in the soil and prevent them from entering the drainage pipe and causing blockage. A set of threaded rods 101 distributed on both sides are installed on the upper part of the inner side of the water collection well 1. A water pump 5 is installed on the outer side of the threaded rods 101. A protective cover 501 is installed above the water pump 5. Mesh ventilation holes can be set on the protective cover 501. The protective cover 501 above the water pump 5 not only protects the motor, but also ensures heat dissipation through the mesh ventilation holes, thus ensuring the normal operation of the water pump 5. The upper part of the water collection well 1 is open A stepped groove is provided to position and conceal the installed manhole cover. A positioning block is provided on the upper part of the inner side of the water collection well 1. A positioning groove is opened on each side of the positioning block. The positioning groove is rectangular. The mounting plate of the water pump 5 extends into the interior of the positioning groove. Through the above structural design, the positioning groove achieves the effect of positioning the installation position of the water pump 5, which facilitates the further stabilization of the water pump 5. A positioning sleeve is provided on the upper part of the water pump 5. The positioning sleeve extends into the interior of the protective cover 501. External threads need to be set on the outer side of the positioning sleeve according to the existing technology. An internal thread needs to be set on the bottom of the protective cover 501. Therefore, after the protective cover 501 is installed, the threads help to achieve the effect of stabilizing the installation position.

[0045] In this embodiment of the disclosure, reference is made to Figures 1 to 9As shown, a nut 601 is installed on the outer side of the threaded rod 101. Through the above structural design, the water pump 5 is stably installed and reliably fixed in the water collection well 1. The threaded rod 101 provides a support base for the water pump 5. The cooperation between the nut 601 and the threaded rod 101 can adjust and lock the position of the water pump 5. A positioning groove is opened on one side of the threaded rod 101, and a mounting hole is opened on one side of the nut 601. The mounting hole is a cylindrical structure, and a locking pin 602 is installed at the position of the mounting hole. One side of the locking pin 602 is installed inside the positioning groove. The positioning groove on one side of the threaded rod 101 has a slot on each of its two inner sides. The slot is a rectangular structure. A set of positioning protrusions is provided on one side of the locking pin 602, and the positioning protrusions extend into the slots. Inside, a slot is provided on one side of the locking pin 602. The slot allows the positioning protrusion to close and expand. A magnet with a mounting groove is installed on the outer side of the nut 601. The threaded rod 101 needs to be made of stainless iron. Through the above structural design, the locking pin 602, through the cooperation of its positioning protrusion and the slot in the positioning groove of the threaded rod 101, further enhances the stability of the connection between the nut 601 and the threaded rod 101, preventing the nut 601 from loosening due to vibration and other factors during long-term use. The magnet with the mounting groove on the outer side of the nut 601 cooperates with the stainless iron threaded rod 101, using magnetic force to further assist in fixation and improve the overall structural stability. The nut 601 and the locking pin 602 cooperate to form the locking structure 6.

[0046] Example 2, based on Example 1, with reference to Figures 1 to 9 As shown, the main drainage pipe 201 and the branch drainage pipe 202 are made of corrosion-resistant and high-strength plastic pipes available in the prior art. The main drainage pipe 201 and the branch drainage pipe 202 are buried at a certain depth underground, and their pipe diameters are determined based on factors such as the regional drainage volume and the soil permeability coefficient.

[0047] Example 3, based on Example 1, with reference to Figures 1 to 9 As shown, a water level monitoring device of existing technology needs to be installed inside the water collection well 1. The specific model and installation steps of the water level monitoring device refer to the existing technology. When the water level inside the water collection well 1 reaches a certain height, the water level monitoring device can promptly trigger the drainage pump 5 to work.

[0048] Example 4, based on Example 1, with reference to Figures 1 to 9 As shown, the water collection well 1, threaded rod 101, main drainage pipe 201, branch drainage pipe 202, first protective frame 301, second protective frame 302, filter cloth 4, water pump 5, protective cover 501, nut 601, and locking pin 602 work together to form a drainage device.

[0049] The working principle of this embodiment:

[0050] Before installing the drainage device, the area with severe secondary salinization should be cleaned and leveled. According to the design plan, the location of the water collection well 1 and the direction and burial depth of the main drainage pipe 201 and the branch drainage pipe 202 should be marked on the site.

[0051] The steps for installing the drainage device are as follows: First, place the collection well 1 in the foundation pit, ensuring that the flow hole at the bottom of the well is accurately connected to the main drainage pipe 201 to achieve communication between the drainage pipe and the inside of the collection well 1. Then, install the main drainage pipe 201 and the branch drainage pipe 202. Workers excavate trenches for the main drainage pipe 201 and the branch drainage pipe 202 according to the marked positions and directions. The trench depth should meet the design requirements. At the installation holes on both sides of the main drainage pipe 201, accurately install and firmly connect the branch drainage pipe 202. The main drainage pipe 201 and the branch drainage pipe 202 form a collection net with each other. Finally, place the main drainage pipe 201 and the branch drainage pipe 202 into the trench.

[0052] The installation steps of the protective structure 3 are as follows: Install the filter cloth 4 on the inner side of the protective structure 3. The filter cloth 4 should cover the main drainage pipe 201 and the branch drainage pipe 202 flatly. Install the first protective frame 301 and the second protective frame 302 on the outer side of the main drainage pipe 201 and the branch drainage pipe 202. Align the positioning blocks on both sides of the first protective frame 301 with the positioning grooves on both sides of the second protective frame 302 so that the two are tightly connected and jointly protect the main drainage pipe 201 and the branch drainage pipe 202.

[0053] The installation steps for water pump 5 are as follows: the worker installs water pump 5 on the threaded rod 101 on the upper inner side of the water collection well 1, extends the mounting plate of water pump 5 into the positioning groove of the positioning block on the inner side of the water collection well 1 to achieve the initial positioning of the installation position of water pump 5, installs nut 601 on threaded rod 101, and rotates nut 601 to stabilize the installation position of water pump 5.

[0054] The workers inserted the locking pin 602 into the mounting hole of the nut 601 and extended the positioning protrusion on one side into the slot in the positioning groove of the threaded rod 101, and installed the protective cover 501 above the water pump 5.

[0055] Excess water in areas with severe secondary salinization will enter the pipes through the flow holes on the main drainage pipe 201 and the branch drainage pipe 202, and then collect in the collection well 1. When the water level in the collection well 1 reaches the height set by the water level monitoring device, the water level monitoring device will trigger the drainage pump 5 to work and discharge the water containing salt in the collection well 1.

[0056] The following points should be noted in this article:

[0057] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0058] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0059] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A drainage device for areas with severe secondary salinization, comprising: The water collection well (1), the diversion structure (2), and the protective structure (3) are provided. A set of flow holes are opened at the bottom of the water collection well (1). Two symmetrically distributed main drainage pipes (201) are installed at the positions of the flow holes. A branch drainage pipe (202) is installed on each side of the main drainage pipe (201). The main drainage pipe (201) and the water collection well (1) are internally connected. The main drainage pipe (201) and the branch drainage pipe (202) cooperate with each other to form the diversion structure (2). The main drainage pipe (201) and the branch drainage pipe (202) are located on the outer sides of the water collection well (1). Install a first protective frame (301) and a second protective frame (302). The first protective frame (301) and the second protective frame (302) cooperate to form a protective structure (3). A filter cloth (4) is installed on the inner side of the protective structure (3). A set of threaded rods (101) distributed on the upper side of the inner side of the water collection well (1) is installed. A water pump (5) is installed on the outer side of the threaded rod (101). A protective cover (501) is installed above the water pump (5). A nut (601) is installed on the outer side of the threaded rod (101).

2. A drainage device for severely secondary salinized areas according to claim 1, characterized in that, A stepped groove is opened above the water collection well (1). A positioning block is provided on the inner side of the water collection well (1) at the upper position. A positioning groove is opened on each side of the positioning block. The positioning groove is a rectangular structure. The mounting plate of the water pump (5) extends into the interior of the positioning groove.

3. A drainage device for severely secondary salinized areas according to claim 1, characterized in that, A positioning sleeve is provided above the water pump (5), and the positioning sleeve extends into the interior of the protective cover (501).

4. A drainage device for severely secondary salinized areas according to claim 1, characterized in that, A positioning groove is provided on one side of the threaded rod (101), and a mounting hole is provided on one side of the nut (601). The mounting hole is a cylindrical structure, and a locking pin (602) is installed at the position of the mounting hole. One side of the locking pin (602) is installed inside the positioning groove.

5. A drainage device for severely secondary salinized areas according to claim 1, characterized in that, The positioning groove on one side of the threaded rod (101) has a slot on each side of the inner side. The slot is rectangular. The locking pin (602) has a set of positioning protrusions on one side, which extend into the inside of the slot. The locking pin (602) has an opening slot on one side.

6. A drainage device for severely secondary salinized areas according to claim 1, characterized in that, A magnet with a mounting groove is installed on the outer side of the nut (601). The nut (601) and the locking pin (602) cooperate to form a locking structure (6).

7. A drainage device for severely secondary salinized areas according to claim 1, characterized in that, An installation hole is opened on each side of the main drainage pipe (201), and a branch drainage pipe (202) is installed at each of the installation holes.

8. A drainage device for severely secondary salinized areas according to claim 1, characterized in that, A set of flow holes is opened on the basis of the main drainage pipe (201) and the branch drainage pipe (202), and the main drainage pipe (201) and the branch drainage pipe (202) are connected to each other.

9. A drainage device for severely secondary salinized areas according to claim 1, characterized in that, The second protective frame (302) is installed above the first protective frame (301). The first protective frame (301) has a set of positioning blocks on both sides. The positioning blocks are rectangular structures with rounded corners. The second protective frame (302) has a set of positioning grooves on both sides. The positioning grooves are rectangular structures, and the positioning blocks extend into the interior of the positioning grooves.