Novel sand barrier and composite sand barrier structure

Abstract

The utility model discloses a novel sand barrier which comprises a sand barrier body, the sand barrier body is vertically arranged, and the left side face and the right side face of the sand barrier are both vertical planes. The front side face and the rear side face of the sand barrier body are both concave inwards to form concave faces. The upper portion of the sand barrier body is provided with a transverse hole penetrating front and back. A sunken notch is formed in the top of the sand barrier body, vertical holes are formed in the left side and / or the right side of the notch respectively, and the vertical holes and the transverse holes are formed in a staggered mode; the utility model further discloses a composite sand barrier. The sand barrier has the advantages that the two side faces of the sand barrier body are designed to be concave inwards, the whole sand barrier body is in a small waist shape, sand can be accumulated at the bottom of the sand barrier, and the sand prevention and stabilization effect is good; the transverse holes are formed in the sand barrier body, the wind speed and the wind direction can be changed, the dead weight of the sand barrier is greatly reduced, and transportation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ecological sand fixation, and in particular to a novel sand barrier and a composite sand barrier structure. Background Art

[0002] As one of the countries with the largest desertification area and the most serious harm in the world, my country's desertification area has reached 27.33% of the country's land area, seriously damaging land resources and ecological balance, and affecting the sustainable development of social economy. The most lasting and effective way to solve desertification is biological sand control, that is, afforestation, but desertification causes serious soil erosion, vegetation growth is difficult, and in areas with strong winds, sand-fixing plants are subject to greater wind and sand impacts and have a low survival rate. Therefore, mechanical sand fixation, which is more convenient and more effective, is a good way.

[0003] Mechanical sand fixation is mainly achieved by setting up sand barriers to change the speed, direction, and structure of the wind and sand flow, thereby achieving the effect of reducing wind speed and fixing the sand surface. At present, most of the existing sand barriers are made of local materials such as wheat straw, reeds, branches, clay, and gravel to reduce costs. They are set in grid or strip shapes to prevent sand damage under different wind directions. Wheat straw is the most abundant material, and the square sand barriers made of it have the widest application area; the strip-shaped clay sand barriers and gravel sand barriers have obvious windproof effects. In addition, there are high vertical sand barriers, which are mainly used in road wind and sand subgrade plane protection projects, and can intercept moving sand particles in the form of obstacles.

[0004] However, in actual applications, it was found that the natural conditions in the desert are harsh and the square sand barriers are easy to rot; most of the other sand barriers adopt a cubic shape. Although they can play a role in wind and sand fixation, they do not consider the impact of the sand barriers on airflow. Sand particles will be deposited in the area where the wind speed is attenuated, but in the area where the wind speed is enhanced, they may accelerate over the sand barriers and continue to move with the airflow, resulting in poor sand fixation effect. Therefore, simply using sand barriers to block the advance of wind and sand requires considering a higher blocking surface, which increases the cost of sand control; although high vertical sand barriers can improve the above technical difficulties, they are difficult to replace and complicated to install.

[0005] In addition, most existing sand barriers use the entire area to block wind and sand (without opening holes) to increase the blocking area and reduce the passage rate of sand particles. However, the wind speed increases rapidly near the sand barrier, and the wind flow carrying sand will have a greater impact force on the sand barrier, increasing the risk of the sand barrier being destroyed and shortening its service life.

[0006] Therefore, it is necessary to improve the prior art. Summary of the invention

[0007] The utility model aims to provide a new type of sand barrier and a composite sand barrier structure with good sand fixation effect and long service life in view of the deficiencies in the prior art.

[0008] The technical solution adopted by the utility model is: a new type of sand barrier, including a sand barrier body, which is arranged vertically, and the left and right sides of the sand barrier are both vertical planes; the front side and the rear side of the sand barrier body are respectively concave inward to form concave surfaces; the upper part of the sand barrier body is provided with a transverse hole that passes through the front and back; the top of the sand barrier body is provided with a sunken notch, and vertical holes are respectively provided on the left and / or right sides of the notch, and the vertical holes and the transverse holes are staggered.

[0009] According to the above scheme, the transverse holes are arranged in multiple layers along the height direction, and the apertures of the transverse holes decrease from top to bottom; the apertures of the transverse holes in the same layer are equal.

[0010] According to the above scheme, the diameter of the transverse holes is 4-15 cm; the opening rate of the sand barrier body is 25-35%.

[0011] According to the above scheme, the lowest point of the bottom lateral holes 3 is higher than the height midline of the sand barrier body 1.

[0012] According to the above scheme, a filter screen is installed at the upper port of the vertical hole.

[0013] According to the above scheme, a water storage tank is opened in the inner lower part of the sand barrier body; the lower end of the vertical hole is connected to the water storage tank.

[0014] According to the above scheme, a card block is provided on the left side of the sand barrier body, and a card slot adapted to the card block is provided on the right side of the sand barrier body.

[0015] The utility model also discloses a sand barrier structure, comprising a plurality of novel sand barriers as described above, wherein the novel sand barriers are arranged side by side facing the wind direction, and between two adjacent novel sand barriers, the card block of the previous novel sand barrier is inserted into the card slot of the next novel sand barrier.

[0016] The utility model also discloses a composite sand barrier structure, comprising the novel sand barrier, columns and a sand blocking net as described above; there are two columns, and both sides of the sand blocking net are respectively connected to the upper parts of the two columns; the columns are adapted to the vertical holes of the novel sand barrier, and the lower parts of the two columns are respectively inserted into the vertical holes of the novel sand barrier.

[0017] The beneficial effects of the utility model are:

[0018] 1. In the utility model, the two sides of the sand barrier body are designed to be concave, and the sand barrier body as a whole is in the shape of a small waist. This design can make sand accumulate at the bottom of the sand barrier, and the sand prevention and fixation effect is good; the sand barrier body is provided with transverse holes, which can change the wind speed and wind speed flow field, can reduce the impact of the wind flow carrying sand on the sand barrier, increase the service life of the sand barrier, and greatly reduce the weight of the sand barrier, which is convenient for transportation.

[0019] 2. In the utility model, a water storage tank is arranged inside the sand barrier, and a water-absorbing resin is arranged inside the water storage tank. The water storage tank is connected with the vertical holes at the top, so that water can be introduced into the water storage tank below when it rains in the desert to provide moisture for plants during drought. The vertical holes can be used as water inlet pipes of the water storage tank and can also be used to connect the sand-blocking net to form a high vertical sand barrier.

[0020] 3. In the utility model, the side of the sand barrier is provided with a splicing groove, which can form a large-area sand-fixing barrier after being embedded, and has good stability and high laying efficiency.

[0021] 4. In the utility model, the main material of the sand barrier is building gypsum and is equipped with nutrients and water-retaining materials to provide nutrients for the growth of sand plants and achieve comprehensive desert control. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the new sand barrier in the utility model.

[0023] Figure 2 This is the front view of the new sand barrier.

[0024] Figure 3 This is a side view of the new sand barrier (the lateral holes are not shown).

[0025] Figure 4 It is a schematic diagram of the sand barrier structure in the utility model.

[0026] Figure 5 This is a schematic diagram of the composite sand barrier structure in the utility model.

[0027] Among them: 1. Sand barrier body; 1.1. Notch; 1.2. Concave surface; 2. Vertical holes; 3. Horizontal holes; 4. Slot; 5. Block; 6. Water storage tank; 7. Column; 8. Sand blocking net; 9. Filter. DETAILED DESCRIPTION

[0028] In order to better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 3 A new type of sand barrier is shown, comprising a sand barrier body 1; the sand barrier body 1 is arranged vertically, and the left and right sides of the sand barrier are both vertical planes; the front and rear side surfaces of the sand barrier body 1 are respectively concave inward to form a concave surface 1.2; a transverse hole 3 that passes through the front and back is opened on the upper part of the sand barrier body 1; a sunken slot 1.1 is provided on the top of the sand barrier body 1, and vertical holes 2 are respectively provided on the left and / or right sides of the slot 1.1, and the vertical holes 2 are staggered with the transverse holes 3.

[0030] In the utility model, both sides of the sand barrier body 1 are designed as concave surfaces 1.2, so that the sand barrier body 1 is in the shape of a small waist, and sand can be accumulated at the bottom of the sand barrier, with good sand prevention and fixation effect.

[0031] In the utility model, the sand barrier body 1 is provided with transverse holes 3, which can greatly reduce the weight of the sand barrier body 1 and facilitate transportation.

[0032] Preferably, the transverse holes 3 are arranged in multiple layers along the height direction, and the apertures of the transverse holes 3 decrease from top to bottom (that is, in two adjacent rows of transverse holes 3, the aperture of the transverse holes 3 in the next layer is smaller than the aperture of the transverse holes 3 in the previous layer); the apertures of the transverse holes 3 in the same layer are equal. When the wind and sand encounter the sand barrier, the wind speed and wind direction are changed, the wind speed at the pores will increase, the sand is heavier and more easily squeezed in low places, the aperture of the lower transverse holes is smaller, and the sand is easily blocked (more sand is blocked on the windward side, reducing the accumulation of wind and sand on the leeward side through the sand barrier to avoid affecting the growth of plants on the leeward side).

[0033] In the utility model, the lowest point of the bottom transverse holes 3 is higher than the height center line of the sand barrier body 1 .

[0034] Preferably, the diameter of the transverse holes 3 is 4-15 cm; and the porosity of the sand barrier body 1 is 25-35%.

[0035] In the present invention, the vertical hole 2 is at least 5 cm away from the horizontal hole 3. The cross section of the vertical hole 2 is circular.

[0036] Preferably, a filter screen 9 is installed at the upper port of the vertical hole 2 .

[0037] In the present invention, the filter screen 9 can be installed detachably, and the filter screen 9 can be a nylon net.

[0038] In the present invention, the design of the filter screen 9 can effectively prevent debris from entering and clogging the vertical hole 2.

[0039] Preferably, a water storage tank 6 is opened in the inner lower part of the sand barrier body 1; the lower end of the vertical hole 2 is connected to the water storage tank 6.

[0040] Preferably, sand-fixing turf can be planted at the lower part of the leeward side of the sand barrier body 1 (lower than 1 / 3 of the height of the sand barrier body 1).

[0041] In the present invention, a water-absorbing resin is arranged at the inner bottom of the water storage tank 6 for retaining water. The arrangement of the water storage tank 6 can provide water for the outside of the sand barrier body 1 .

[0042] In the utility model, the vertical hole 2 serves as a water inlet pipe of the water storage tank 6 , and rainwater in the top notch 1 . 1 of the sand barrier body 1 flows into the water storage tank 6 through the vertical hole 2 .

[0043] Preferably, a clamping block 5 is provided on the left side of the sand barrier body 1 , and a clamping slot 4 adapted to the clamping block 5 is provided on the right side of the sand barrier body 1 .

[0044] In the utility model, the design of the clamping block 5 and the clamping slot 4 facilitates the assembly and disassembly of multiple sand barrier bodies 1 .

[0045] In the utility model, the sand barrier body 1 can be made of existing sand-fixing composite materials (such as the sand-fixing composite materials mentioned in Chinese patent CN200710085351.7), which includes gypsum and a water absorbent. When the sand-fixing turf is planted at the lower part of the sand barrier body 1, the water in the water collection tank is absorbed by the water absorbent of the sand barrier body 1, providing water for the sand-fixing turf on the outside.

[0046] like Figure 4 A sand barrier structure shown includes several new sand barriers as described above, each of which is arranged side by side facing the wind direction, and between two adjacent new sand barriers, the card block 5 of the previous new sand barrier is inserted into the card slot 4 of the next new sand barrier.

[0047] In the utility model, two adjacent novel sand barriers are connected via a clamping block 5 and a clamping slot 4 .

[0048] like Figure 5 The composite sand barrier structure shown is essentially a high vertical sand barrier, including the new sand barrier, columns 7 and sand blocking nets 8 as described above; there are two columns 7, and the two sides of the sand blocking net 8 are respectively connected to the upper parts of the two columns 7; the columns 7 are adapted to the vertical holes 2 of the new sand barrier, and the lower parts of the two columns 7 are respectively inserted into the vertical holes 2 of the new sand barrier.

[0049] In the utility model, after removing the filter screen 9 at the upper end of the longitudinal hole, the column 7 of the sand blocking net 8 is inserted into the longitudinal hole to complete the connection between the sand blocking net 8 and the new sand barrier; the sand blocking net 8 can be freely selected according to actual conditions.

[0050] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0051] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of sand barrier, characterized in that: It includes a sand barrier body, which is arranged vertically, and the left and right sides of the sand barrier are both vertical planes; the front and rear side surfaces of the sand barrier body are respectively concave inward to form concave surfaces; the upper part of the sand barrier body is provided with a transverse hole that passes through the front and back; the top of the sand barrier body is provided with a sunken slot, and vertical holes are respectively provided on the left and / or right sides of the slot, and the vertical holes are staggered with the transverse holes.

2. The novel sand barrier according to claim 1, characterized in that: The transverse holes are arranged in multiple layers along the height direction, and the apertures of the transverse holes decrease from top to bottom; the apertures of the transverse holes in the same layer are equal.

3. The novel sand barrier according to claim 1, characterized in that: The diameter of the transverse holes is 4-15 cm; the opening rate of the sand barrier body is 25-35%.

4. The novel sand barrier as claimed in claim 2, characterized in that: The lowest point of the bottom lateral holes is higher than the height midline of the sand barrier body.

5. The novel sand barrier according to claim 1, characterized in that: A filter screen is installed at the upper port of the vertical hole.

6. The novel sand barrier according to claim 1, characterized in that: A card block is arranged on the left side of the sand barrier body, and a card slot adapted to the card block is arranged on the right side of the sand barrier body.

7. The novel sand barrier according to claim 1, characterized in that: A water storage tank is provided at the inner lower part of the sand barrier body; the lower end of the vertical hole is connected to the water storage tank.

8. A sand barrier structure, characterized in that: It comprises a plurality of new sand barriers as described in any one of claims 1 to 6, each of which is arranged side by side facing the wind direction, and between two adjacent new sand barriers, the card block of the previous new sand barrier is inserted into the card slot of the next new sand barrier.

9. A composite sand barrier structure, characterized in that: It comprises the new sand barrier, pillars and sand blocking net as described in any one of claims 1 to 3 and 4 to 6; there are two pillars, and the two sides of the sand blocking net are respectively connected to the upper parts of the two pillars; the pillars are adapted to the vertical holes of the new sand barrier, and the lower parts of the two pillars are respectively inserted into the vertical holes of the new sand barrier.

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