A water-retaining and sand-fixing device and method for desert windbreak and sand-fixing forest

Abstract

The invention relates to the field of desert water conservation and sand fixation, and in particular to a water conservation and sand fixation device and method for a desert windbreak and sand fixation forest, comprising a conical frame for being buried in a sand pit, wherein a conical inner frame is arranged in the conical frame, and the bottom of the conical inner frame is connected to the conical frame, a certain gap is left between the outer side of the conical frame and the inner wall of the conical frame, a plurality of strip grooves distributed along the extension section of the conical inner frame are provided on the four inner walls of the conical inner frame, and a water storage unit for storing water is arranged on the conical frame, and water is replenished toward the water storage unit through an external water replenishing device, and then the water storage unit will uniformly transfer the water inside the water storage unit to the sand inside the conical inner frame, that is, the roots of the seedlings in the conical inner frame are replenished with water, and then the seedlings are supported by a support unit to prevent them from being skewed, and a winding component cooperates with the support unit to adjust the water supply of the water storage unit through the growth of the seedlings and the change of the outer diameter thereof, so as to avoid the waste of water resources.

Description

Technical Field

[0001] The invention relates to the field of desert water conservation and sand fixation, and in particular to a device and method for water conservation and sand fixation for desert windbreak and sand fixation forests. Background Art

[0002] Desert windbreak and sand-fixing forest is an ecological engineering measure that forms a green barrier to fix sand and soil by planting drought-resistant plants in deserts or arid areas, preventing wind erosion and sandstorms, improving the local ecological environment, increasing land availability, and promoting soil formation and biodiversity. This measure helps stabilize sand dunes, improve microclimate, provide ecological services, and protect infrastructure from wind and sand damage; although windbreak and sand-fixing forests play a role in fixing sand and improving the environment in deserts or arid areas through afforestation, these areas usually face extreme drought and water scarcity problems. Therefore, shelterbelts also need some auxiliary equipment to assist them, such as water conservation, and further assist shelterbelts in sand fixation.

[0003] Existing water-retaining and sand-fixing devices usually bury the water-retaining devices in the sand, collect the precipitation through natural precipitation, and then gradually discharge the precipitation into the sand. The existing water-retaining and sand-fixing devices can only stabilize part of the surrounding sand through the main body, and cannot stabilize a large area of ​​sand at the same time. The area is small, and the existing water-retaining and sand-fixing devices cannot directly assist the shelterbelts, that is, there is a lack of a water-retaining and sand-fixing device that can be directly applied to the shelterbelts.

[0004] In order to make a more accurate comparison, a Chinese patent with publication number CN107820909B discloses a sand fixation and water conservation device.

[0005] The utility model comprises a conical container with an upper opening and a lower opening. The inside of the container is divided into a weight layer, a heat insulating layer and a water retaining layer from top to bottom. The outer wall surrounding the container is provided with a water collecting trough extending outward and obliquely upward. The side wall surrounding the container is provided with a plurality of water holes in the water collecting area of ​​the water collecting trough. The inside of the container is provided with a rainwater channel connected with the water passing holes and leading to the water retaining layer.

[0006] However, when using the above-mentioned prior art to fix sand and retain water, there are still the following problems:

[0007] 1. Although the above device can receive rainwater through the upper opening, the area of ​​the upper opening is small, and there is no device to divert rainwater. The amount of rainwater falling into the device is small, that is, the collection efficiency is low. In addition, since the precipitation in the desert area is small, and the upper opening of the above device is open, the water inside the device will still evaporate under long-term sunlight. Therefore, its water retention effect is not good and its applicability is low.

[0008] 2. The above device can only be inserted below the desert surface through the lower horizontal plate, and can only fix sand in part of the area below the desert surface. The sand fixation range is limited, and the above device cannot effectively fix sand on the desert surface, that is, the desert surface will still loosen. As time goes by, the sand on the desert surface will eventually affect the lower end of the desert surface, so that the lower horizontal plate cannot achieve the purpose of sand fixation, further reducing its applicability.

[0009] Therefore, based on the above-stated viewpoint, there is still room for optimization in the existing technology for water conservation and sand fixation. Summary of the invention

[0010] In order to solve the above problems, the present invention provides a water-retaining and sand-fixing device for a desert windbreak and sand-fixing forest, comprising a conical frame for being buried in a sand pit, a conical inner frame being arranged inside the conical frame, and the bottom of the conical inner frame being connected to the conical frame, a gap being left between the inner wall of the conical frame and the outer wall of the conical inner frame, a plurality of strip grooves distributed along the extension section thereof are provided on the four inner walls of the conical inner frame, and a water storage unit for storing water is provided on the conical frame.

[0011] A collecting component for collecting rainwater is also provided at the upper end of the conical frame, and a supporting unit for supporting the saplings is also provided on the inner wall of the conical frame. Winding components are provided on the supporting unit and the collecting component. On rainy days, the winding component controls the collecting component to unfold to collect rainwater. When the sun shines, the winding component controls the collecting component to retract to block the sun from shining on the roots of the saplings.

[0012] The water storage unit includes several water storage cylinders installed on the conical frame, and the several water storage cylinders correspond to the strip grooves one by one. Connecting pipes are arranged through the water storage cylinders, and the connecting pipes are connected by series pipes. A water outlet groove is opened on one side of the water storage cylinder facing the inside of the conical frame.

[0013] Preferably, the water storage unit also includes a plurality of C-shaped plates arranged between the conical frame and the conical inner frame, and the C-shaped plates correspond to the strip grooves one by one, and a drainage groove is provided on the side walls of two adjacent C-shaped plates, and an overflow groove connected with the drainage groove is provided on the side walls of the C-shaped plates, and the drainage grooves are staggered.

[0014] Preferably, through grooves intersecting the strip grooves are provided on the four sides of the conical inner frame, and an adjustment unit for adjusting the water output is arranged in the through groove. The adjustment unit includes a sliding plate slidably arranged on the inner wall of the through groove, and a plurality of adjustment grooves corresponding to the strip grooves are arranged on the sliding plate. An opening and closing plate is also slidably arranged inside the through groove, and a plurality of opening and closing grooves corresponding to the strip grooves are also arranged on the opening and closing plate. A reset tension spring is also arranged between the opening and closing plate and the inner wall of the through groove.

[0015] Preferably, a screen is provided on the inner wall of the strip-shaped groove, and a plurality of screen holes having a diameter smaller than that of gravel but capable of allowing water to flow through are provided on the screen.

[0016] Preferably, the collecting assembly comprises four triangular plates respectively hingedly arranged on four sides of the conical frame, and a quadrant is formed on the triangular plates.

[0017] Preferably, the support unit comprises a frame-shaped plate arranged on four inner walls of the conical inner frame, an extension plate is slidably arranged inside the frame-shaped plate, and an arc-shaped contact plate for contacting with the outer side of the sapling is arranged at the other end of the extension plate.

[0018] Preferably, a structural groove is provided on the extension plate, a convex block located in the structural groove is provided on the inner wall of the frame-shaped plate, and a reset push spring is further provided between the convex block and the inner wall of the structural groove.

[0019] Preferably, the winding assembly on the supporting unit is arranged on the frame-shaped plate to drive the sliding plate to move, and the winding assembly on the collecting assembly is arranged on the triangular plate to drive the opening and closing plate to move. The winding assembly includes a winding drum that is rotated by a torsion spring and is arranged on the inner wall of the frame-shaped plate. A pull rope is wound on the outer side of the winding drum. One end of the pull rope is connected to the extension plate, and the other end of the pull rope passes through the inner wall of the conical inner frame and is connected to the upper end of the sliding plate.

[0020] Preferably, a circular groove corresponding to its hinge point is opened on the triangular plate, and a winding drum 2 is arranged on the inner wall of the circular groove. A pull rope 2 with one end connected to the winding drum is wound on the outer side of the winding drum, and the other end of the pull rope 2 is connected to the corresponding opening and closing plate.

[0021] In addition, the present invention also provides a method for retaining water and fixing sand for a desert windbreak and sand-fixing forest, comprising the following steps:

[0022] S1, device installation: first dig a sand pit at the planned tree planting location, then place a conical frame in the sand pit, plant the saplings in the conical inner frame, and then fill the sand pit, with the upper part of the conical frame exposed to the ground surface. The conical frame is buried in the sand pit to achieve the effect of sand fixation.

[0023] S2, replenishing water: replenishing water into the water storage unit through external water replenishing equipment, and then the water storage unit will transfer the water inside it to the sand inside the conical inner frame, that is, replenishing water to the roots of the seedlings in the conical inner frame.

[0024] S3, water volume regulation: the support unit is used to support the sapling to prevent it from tilting, and the winding assembly cooperates with the support unit to adjust the water supply of the water storage unit according to the growth of the sapling and the change of its outer diameter.

[0025] S4, collecting water: the collecting component is used to seal the upper end of the conical inner frame in the initial state to prevent the water inside the conical frame from evaporating due to sunlight. When it rains, the collecting component is unfolded to allow rainwater to enter the sand inside the conical inner frame, while increasing the water receiving area so that rainwater can enter the water storage unit for storage.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The present invention first digs a sand pit at a predetermined tree planting location, then places a conical frame in the sand pit, plants the saplings in the conical inner frame, and then fills the sand pit. The upper part of the conical frame is exposed to the ground surface. The conical frame is buried in the sand pit to achieve a preliminary sand fixation effect. Then, multiple devices are connected together through expansion components. The expansion boards can be spliced ​​together to form a grid distribution formation, thereby increasing the contact area with the sand and further increasing the sand fixation effect of the device.

[0028] 2. The present invention replenishes water into the water storage unit through an external water replenishment device, and then the water storage unit transfers the water inside it to the sand inside the conical inner frame, that is, replenishes water to the roots of the seedlings in the conical inner frame, and then supports the seedlings through the support unit to prevent them from tilting. The winding component and the support unit cooperate with each other to adjust the water supply of the water storage unit according to the growth of the seedlings and the change of their outer diameter, thereby avoiding waste of water resources.

[0029] 3. The present invention can also seal the upper end of the conical inner frame through the collecting component to prevent the evaporation of water inside the conical frame due to sunlight. When it rains, the triangular plate in the collecting component unfolds to allow rainwater to enter the sand in the conical inner frame, while increasing the water receiving area so that rainwater can enter the water storage unit for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Figure 1 It is a schematic diagram of the main body structure of the present invention.

[0032] Figure 2 It is a structural schematic diagram of the water storage unit and the regulating unit of the present invention.

[0033] Figure 3 It is a structural schematic diagram of the conical inner frame of the present invention.

[0034] Figure 4 It is a plan cross-sectional view of the drain trough and overflow trough of the present invention.

[0035] Figure 5 It is a schematic diagram of the structure of the collection component of the present invention.

[0036] Figure 6 It is a structural schematic diagram of the support unit of the present invention.

[0037] Figure 7 It is a planar cross-sectional view of the support unit and the winding assembly of the present invention.

[0038] Figure 8 It is a structural diagram of multiple devices being expanded through expansion components.

[0039] Fig. 9 It is a structural schematic diagram of the adjustment unit of the present invention from another viewing angle.

[0040] In the figure, 1, conical frame; 10, conical inner frame; 11, strip groove; 2, water storage unit; 20, water storage cylinder; 21, connecting pipe; 22, series pipe; 23, water outlet groove; 24, U-shaped plate; 25, drainage groove; 26, overflow groove; 3, adjustment unit; 30, sliding plate; 31, adjustment groove; 32, opening and closing plate; 33, opening and closing groove; 34, reset tension spring; 35, sieve; 4, collecting component; 40, triangular plate; 41, quarter circle; 5, supporting unit; 50, frame plate; 51, extension plate; 52, arc-shaped plate; 53, protrusion; 54, reset push spring; 6, winding component; 60, winding drum one; 61, pull rope one; 62, winding drum two; 63, pull rope two; 7, expansion component; 70, expansion plate; 71, expansion groove; 72, expansion strip plate. DETAILED DESCRIPTION

[0041] The following combination Figures 1 to 9 While embodiments of the invention have been described in detail, the invention can be implemented in many different ways as defined and covered by the claims.

[0042] The embodiment of the present application discloses a water-retaining and sand-fixing device and method for a desert windbreak and sand-fixing forest. The water-retaining and sand-fixing device and method for a desert windbreak and sand-fixing forest are mainly used in the process of assisting sand fixation and water conservation in the sand-fixing forest. It can also provide auxiliary support for the sand-fixing forest seedlings to prevent the seedlings from tilting during the growth process. In particular, the device can also gradually increase the amount of water replenished to the seedlings according to the growth of the seedlings by changing the diameter of the seedlings' branches and trunks, thereby avoiding the waste of water resources. Moreover, multiple devices can be connected in series to increase the sand-fixing effect.

[0043] Example 1: Reference Figure 1 and Figure 2As shown, it includes a conical frame 1, a conical inner frame 10, a strip groove 11, a water storage unit 2, a collecting component 4, a supporting unit 5 and a winding component 6. The conical inner frame 10 is arranged in the conical frame 1, and the bottom of the conical inner frame 10 is connected to the conical frame 1. The conical frame 1 is used to be placed in a sand pit, and the saplings are planted in the conical inner frame 10. Then the sand pit is filled so that the soil and sand fill the inside of the conical inner frame 10 and the outside of the conical frame 1, so that the saplings can be planted in the conical inner frame 10; a gap is left between the inner wall of the conical frame 1 and the outer wall of the conical inner frame 10, and a plurality of strip grooves 11 distributed along the extension section of the four inner walls of the conical inner frame 10 are opened. The conical frame 1 is provided with a water storage unit 2 for storing water, that is, the water storage unit 2 can transfer water to the sand in the conical inner frame 10 through the strip grooves 11 to supply water to the roots of the saplings.

[0044] A collecting component 4 for collecting rainwater is also provided at the upper end of the conical frame 1, and a supporting unit 5 for supporting the sapling is also provided on the inner wall of the conical frame 1. A winding component 6 is provided on the supporting unit 5 and the collecting component 4. On rainy days, the winding component 6 controls the collecting component 4 to unfold to collect rainwater. When the sun shines, the winding component 6 controls the collecting component 4 to retract to block the sun from shining on the roots of the saplings.

[0045] Continue to refer to Figure 2 , Figure 3 and Figure 4 As shown, a water storage unit 2 for storing water; specifically, the water storage unit 2 includes a water storage cylinder 20, a connecting pipe 21, a series pipe 22, a water outlet trough 23, a c-shaped plate 24, a drainage trough 25 and an overflow trough 26. Several water storage cylinders 20 are installed on the conical frame 1, and the water storage cylinders 20 are used to store water; and the water storage cylinders 20 correspond to the strip grooves 11 one by one, and connecting pipes 21 are provided through the water storage cylinders 20, and the connecting pipes 21 are connected by the series pipe 22. An external connecting pipe for connecting to an external water supply device is provided through the connecting pipe 21 on one side. The external water supply device supplies water to the connecting pipe 21 through the external connecting pipe and the series pipe 22, and then the water is injected into the water storage cylinder 20 through the connecting pipe 21.

[0046] A water outlet trough 23 is provided on one side of the water storage cylinder 20 facing the inside of the conical frame 1, and several C-shaped plates 24 are arranged between the conical frame 1 and the conical inner frame 10, and the C-shaped plates 24 correspond to the strip grooves 11 one by one, that is, the water in the water storage cylinder 20 can enter the C-shaped plates 24, and then the water is discharged into the sand along the C-shaped plates 24 through the strip grooves 11 to replenish water to the roots of the seedlings.

[0047] The side walls of two adjacent C-shaped plates 24 are provided with drainage grooves 25. The side walls of the C-shaped plates 24 are provided with overflow grooves 26 intersecting with the drainage grooves 25. The drainage grooves 25 are arranged in a staggered manner. When it rains, water will drip into the uppermost C-shaped plate 24. Then, as the water level in the C-shaped plate 24 rises, the water surface is higher than the corresponding overflow groove 26. The water will enter the drainage groove 25 through the overflow groove 26, and then enter the C-shaped plate 2 at the lower end through the next overflow groove 26. 4, at this time, the lower end, that is, the other side of the second C-shaped plate 24 is also provided with a corresponding overflow groove 26, and the interior thereof and the interior of the C-shaped plate 24 at the lower end are also provided with a drainage groove 25, and water will enter the third C-shaped plate 24 through the corresponding overflow groove 26 and the drainage groove 25, and so on, realizing the function of collecting rainwater by the C-shaped plate 24. When the water in the water storage cylinder 20 and the C-shaped plate 24 flows out, water is supplied by an external water supply device to save water.

[0048] Continue to refer to Figure 2 and Fig. 9 As shown, the four sides of the conical inner frame 10 are also provided with through grooves intersecting the strip grooves 11, and the through grooves are provided with an adjusting unit 3 for adjusting the water output; specifically, the adjusting unit 3 includes a sliding plate 30, an adjusting groove 31, an opening and closing plate 32, an opening and closing groove 33, a reset spring 34 and a screen 35, the sliding plate 30 is slidably arranged on the inner wall of the through groove, and the sliding plate 30 is provided with a plurality of adjusting grooves 31 corresponding to the strip grooves 11, and the sliding plate 30 can slide up and down in the through grooves. When the adjusting groove 31 on the sliding plate 30 corresponds to the strip groove 11, water will flow into the conical inner frame 10 through the adjusting groove 31 and the strip groove 11, and the overlapping area between the adjusting groove 31 and the strip groove 11 will change through the up and down movement of the sliding plate 30. When the adjusting groove 31 and the strip groove 11 completely overlap, the amount of water entering the conical inner frame 10 through the strip groove 11 is the largest. On the contrary, when the overlapping area between the adjusting groove 31 and the strip groove 11 is small, the amount of water will decrease.

[0049] When the opening and closing plate 32 is no longer driven by an external force, the corresponding reset spring 34 will pull the opening and closing plate 32 to move to the initial position.

[0050] A screen 35 is provided on the inner wall of the strip groove 11. The screen 35 is provided with a plurality of screen holes whose diameters are smaller than those of gravel but can allow water to flow through. That is, the screen 35 can separate the outlet of the strip groove 11 from the sand, and at the same time control the water flow speed in the strip groove 11 so that the water slowly enters into the sand and soaks the sand in the conical inner frame 10.

[0051] Reference Figure 5 As shown, a collecting assembly 4 for collecting rainwater is also provided at the upper end of the conical frame 1; specifically, the collecting assembly 4 includes a triangular plate 40 and a quadrant 41, and the four triangular plates 40 are respectively hingedly arranged on the four sides of the conical frame 1, that is, the triangular plates 40 can swing along their hinge points at the upper end of the conical frame 1, and the hinge points of the triangular plates 40 can be installed with external driving equipment to indirectly provide rotational force for the triangular plates 40.

[0052] A quadrant 41 is provided on the triangular plate 40. After the four triangular plates 40 are swung to the upper end of the conical frame 1, they can form a rectangle, and the quadrants 41 can also form a circle to avoid blocking the saplings. The triangular plate 40 can block the upper end of the conical inner frame 10 to prevent sunlight from irradiating into the conical inner frame 10 and causing water evaporation and loss. When it rains, the triangular plate 40 is unfolded and no longer blocks the upper end of the conical inner frame 10, and rainwater will fall into the conical inner frame 10. The triangular plate 40 can also increase the contact area with rainwater, so that rainwater can flow along its side into the uppermost U-shaped plate 24, so that the U-shaped plate 24 can store rainwater.

[0053] To further explain, the weather is detected through existing technologies such as environmental sensors to drive the external driving device to rotate the corresponding triangular plate 40, so as to realize the function of opening the triangular plate 40 when it rains and closing the triangular plate 40 when the sun shines. At the same time, the triangular plate 40 will form an angle greater than ninety degrees and less than one hundred and eighty degrees with the conical frame 1 when rotating. The diameter of the circle formed by the four quadrants 41 is fixed, and its diameter is larger than the diameter of the sapling after it grows up, so as to avoid the sapling blocking the swing of the triangular plate 40.

[0054] Reference Figure 6 and Figure 7As shown, a support unit 5 for supporting the sapling is also provided on the inner wall of the conical frame 1; specifically, the support unit 5 includes a frame plate 50, an extension plate 51, an arc-shaped contact plate 52, a protrusion 53 and a reset spring 54. The four frame plates 50 are evenly arranged on the four inner walls of the conical inner frame 10. An extension plate 51 is slidably arranged inside the frame plate 50. The other end of the extension plate 51 is provided with an arc-shaped contact plate 52 for contacting the outer side of the sapling. The extension plate 51 can move toward or away from the sapling under the limiting guidance of the frame plate 50, and the arc-shaped contact plate 52 is used to contact the outer side of the sapling.

[0055] A structural groove is provided on the extension plate 51, and a protrusion 53 located in the structural groove is provided on the inner wall of the frame plate 50. A reset push spring 54 is also provided between the protrusion 53 and the inner wall of the structural groove. The reset push spring 54 pushes the extension plate 51 with the protrusion 53 as the base point, so that the extension plate 51 drives the corresponding arc-shaped plate 52 to be close to the sapling, supports and limits the sapling to prevent the sapling from tilting. In the process of growth of the sapling, its diameter will also become larger and larger. At this time, a reaction force will be applied to the arc-shaped plate 52, so that the arc-shaped plate 52 drives the corresponding extension plate 51 to move in a direction away from the sapling, causing the reset push spring 54 to contract. At this time, the thrust of the reset push spring 54 will also increase, that is, the diameter and mass of the sapling will also increase. The reset push spring 54 can indirectly apply a greater thrust to the arc-shaped plate 52 to support the sapling.

[0056] Continue to refer to Figure 7 As shown, the winding assembly 6 on the support unit 5 is arranged on the frame plate 50, and is used to drive the sliding plate 30 to move. The winding assembly 6 on the collecting assembly 4 is arranged on the triangular plate 40, and is used to drive the opening and closing plate 32 to move. Specifically, the winding assembly 6 includes a winding drum 60, a pull rope 61, a winding drum 62 and a pull rope 63. The winding drum 60 is rotatably arranged on the inner wall of the frame plate 50 through a torsion spring. A pull rope 61 is wound on the outside of the winding drum 60. One end of the pull rope 61 is connected to the extension plate 51, and the other end of the pull rope 61 passes through the inner wall of the conical inner frame 10 and is connected to the upper end of the sliding plate 30.

[0057] The force of the torsion spring is smaller than the thrust of the reset push spring 54, that is, in the initial state, when the extension plate 51 moves toward the direction of the winding drum 60, the torsion spring drives the winding drum 60 back to rotate and retract part of the pull rope 61. At this time, the other end of the pull rope 61 will also be wound onto the winding drum 60, thereby indirectly pulling the corresponding sliding plate 30 to move upward, so that the overlapping area between the adjustment groove 31 on the sliding plate 30 and the strip groove 11 gradually increases, which indirectly increases the amount of water entering the conical inner frame 10, so that as the sapling grows, the amount of water injected will also increase accordingly, further improving the applicability of the present invention.

[0058] A circular groove corresponding to its hinge point is provided on the triangular plate 40, and a winding drum 62 is also provided on the inner wall of the circular groove. A pull rope 63 with one end connected to the winding drum 62 is also wound on the outer side of the winding drum 62, and the other end of the pull rope 63 is connected to the corresponding opening and closing plate 32. That is, when it rains, water supply is no longer needed and the triangular plate 40 will be unfolded. At this time, the corresponding winding drum 62 will rotate synchronously with its hinge point, and then wind the pull rope 63 on its outer side, so that the pull rope 63 pulls the corresponding opening and closing plate 32 to rise, so that the opening and closing groove 33 no longer corresponds to the strip groove 11, and the opening and closing plate 32 blocks the strip groove 11, and water will no longer enter the interior of the conical inner frame 10 through the strip groove 11, so that rainwater can be stored in the U-shaped plate 24.

[0059] Example 2: Reference Figure 8 As shown, on the basis of the first embodiment, in order to further enhance the sand fixation effect of the device, an expansion component 7 is provided on the outer surface of the conical frame 1; specifically, the expansion component 7 includes an expansion plate 70, an expansion groove 71 and an expansion strip plate 72, eight expansion plates 70 are arranged on the four sides of the conical frame 1, and two symmetrically distributed expansion plates 70 are distributed on one side of the conical frame 1, and the corresponding two expansion plates 70 form a group, and the expansion plate 70 will also be buried in the sand with the conical frame 1, and a part of it is located at the upper end of the sand.

[0060] Two adjacent groups of expansion plates 70 are provided with expansion grooves 71, and the other two groups of expansion plates 70 are provided with expansion strips 72 for being inserted into the expansion grooves 71. It should be noted that the series tube 22 passes through the expansion plate 70 to prevent the expansion plate 70 from blocking it. That is, the sand-proof forest is a forest composed of multiple trees. In the initial planting stage, the sand-proof forest is planted with multiple trees, that is, multiple devices need to be buried in the sand. At this time, the expansion strips 72 on other devices are inserted into the expansion grooves 71. Multiple devices can be expanded together to form an area similar to a mesh structure, thereby achieving sand fixation in the surrounding area.

[0061] In addition, the present invention also provides a method for retaining water and fixing sand for a desert windbreak and sand-fixing forest, comprising the following steps:

[0062] S1, device installation: first dig a sand pit at the predetermined tree planting location, then place the conical frame 1 in the sand pit, plant the saplings in the conical inner frame 10, and then fill the sand pit, with the upper part of the conical frame 1 exposed to the ground surface. The conical frame 1 is buried in the sand pit to achieve the effect of sand fixation.

[0063] S2, replenishing water: replenishing water into the water storage unit 2 through an external water replenishing device, and then the water storage unit 2 will evenly transfer the water inside it to the sand inside the conical inner frame 10, that is, replenishing water to the roots of the seedlings in the conical inner frame 10.

[0064] S3, water volume regulation: the support unit 5 is used to support the sapling to prevent it from tilting, and the winding assembly 6 cooperates with the support unit 5 to adjust the water supply of the water storage unit 2 according to the growth of the sapling and the change of its outer diameter.

[0065] S4, collecting moisture: the collecting component 4 is used to seal the upper end of the conical inner frame 10 in the initial state to prevent the moisture inside the conical frame 1 from evaporating due to sunlight. When it rains, the triangular plate 40 in the collecting component 4 unfolds to allow rainwater to enter the sand in the conical inner frame 10, while increasing the water receiving area so that rainwater can enter the water storage unit 2 for storage.

[0066] S5, expansion and sand fixation: multiple devices are connected together through the expansion component 7, and a grid distribution formation can be formed by splicing the expansion plates 70 to increase the contact area with the sand, thereby further increasing the sand fixation effect of the device.

[0067] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0068] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water-retaining and sand-fixing device for a desert windbreak and sand-fixing forest, comprising a conical frame (1) for burying in a sand pit, characterized in that: The conical frame (1) is provided with a conical inner frame (10), and the bottom of the conical inner frame (10) is connected to the conical frame (1), a gap is left between the inner wall of the conical frame (1) and the outer wall of the conical inner frame (10), and a plurality of strip grooves (11) are provided on the four inner walls of the conical inner frame (10) and distributed along the extension section thereof, and a water storage unit (2) for storing water is provided on the conical frame (1); The upper end of the conical frame (1) is also provided with a collecting assembly (4) for collecting rainwater, and the inner wall of the conical frame (1) is also provided with a supporting unit (5) for supporting the sapling, and both the supporting unit (5) and the collecting assembly (4) are provided with a winding assembly (6). On rainy days, the winding assembly (6) controls the collecting assembly (4) to expand so as to collect rainwater, and when the sun shines, the winding assembly (6) controls the collecting assembly (4) to retract so as to block the sun from shining on the roots of the sapling; The water storage unit (2) comprises a plurality of water storage cylinders (20) mounted on the conical frame (1), and the plurality of water storage cylinders (20) correspond to the strip grooves (11) one by one, connecting pipes (21) are provided between the water storage cylinders (20), and the connecting pipes (21) are connected by series pipes (22), and a water outlet groove (23) is provided on one side of the water storage cylinder (20) facing the inside of the conical frame (1); The four sides of the conical inner frame (10) are provided with through grooves intersecting the strip grooves (11); an adjusting unit (3) for adjusting the water output is arranged in the through groove; the adjusting unit (3) comprises a sliding plate (30) slidably arranged on the inner wall of the through groove; a plurality of adjusting grooves (31) corresponding to the strip grooves (11) are arranged on the sliding plate (30); an opening and closing plate (32) is slidably arranged inside the through groove; a plurality of opening and closing grooves (33) corresponding to the strip grooves (11) are arranged on the opening and closing plate (32); and a return tension spring (34) is arranged between the opening and closing plate (32) and the inner wall of the through groove.

2. The water-retaining and sand-fixing device for desert windbreak and sand-fixing forests according to claim 1, characterized in that: The water storage unit (2) further comprises a plurality of C-shaped plates (24) arranged between the conical frame (1) and the conical inner frame (10), wherein the C-shaped plates (24) correspond to the strip grooves (11) one by one, and the side walls of two adjacent C-shaped plates (24) are provided with a drainage groove (25) in common, and the side walls of the C-shaped plates (24) are provided with an overflow groove (26) intersecting the drainage groove (25), and the drainage grooves (25) are arranged in a staggered manner.

3. The water-retaining and sand-fixing device for desert windbreak and sand-fixing forests according to claim 1, characterized in that: A screen (35) is arranged on the inner wall of the strip-shaped groove (11), and a plurality of screen holes having a diameter smaller than that of gravel but capable of allowing water to pass through are opened on the screen (35).

4. The water-retaining and sand-fixing device for desert windbreak and sand-fixing forests according to claim 1, characterized in that: The collecting assembly (4) comprises four triangular plates (40) respectively arranged on four sides of the conical frame (1) in a hinged manner, and a quadrant (41) is formed on the triangular plates (40).

5. The water-retaining and sand-fixing device for desert windbreak and sand-fixing forests according to claim 4, characterized in that: The support unit (5) comprises a frame-shaped plate (50) arranged on four inner walls of the conical inner frame (10), an extension plate (51) is slidably arranged inside the frame-shaped plate (50), and an arc-shaped contact plate (52) for contacting the outer side of the sapling is arranged at the other end of the extension plate (51).

6. The water-retaining and sand-fixing device for desert windbreak and sand-fixing forests according to claim 5, characterized in that: The extension plate (51) is provided with a structural groove, the inner wall of the frame-shaped plate (50) is provided with a protrusion (53) located in the structural groove, and a return spring (54) is provided between the protrusion (53) and the inner wall of the structural groove.

7. The water-retaining and sand-fixing device for desert windbreak and sand-fixing forests according to claim 5, characterized in that: The winding assembly (6) on the support unit (5) is arranged on the frame-shaped plate (50) and is used to drive the sliding plate (30) to move. The winding assembly (6) on the collecting assembly (4) is arranged on the triangular plate (40) and is used to drive the opening and closing plate (32) to move. The winding assembly (6) comprises a winding drum (60) arranged on the inner wall of the frame-shaped plate (50) by a torsion spring, and a pull rope (61) is wound on the outer side of the winding drum (60). One end of the pull rope (61) is connected to the extension plate (51), and the other end of the pull rope (61) passes through the inner wall of the conical inner frame (10) and is connected to the upper end of the sliding plate (30).

8. The water-retaining and sand-fixing device for desert windbreak and sand-fixing forests according to claim 4, characterized in that: The triangular plate (40) is provided with a circular groove corresponding to its hinge point, and a second winding drum (62) is provided on the inner wall of the circular groove. A second drawstring (63) having one end connected thereto is wound around the outer side of the second winding drum (62), and the other end of the second drawstring (63) is connected to the corresponding opening and closing plate (32).

9. A method for retaining and fixing water in a desert windbreak and sand-fixing forest, using a device for retaining and fixing water in a desert windbreak and sand-fixing forest as claimed in any one of claims 1 to 8, characterized in that: The water conservation and sand fixation method includes the following steps: S1, device installation: first dig a sand pit at a predetermined tree planting location, then place a conical frame (1) in the sand pit, plant the saplings in the conical inner frame (10), then fill the sand pit, with the upper part of the conical frame (1) exposed to the ground surface, and the conical frame (1) is buried in the sand pit to achieve a sand fixation effect; S2, replenishing water: replenishing water into the water storage unit (2) through an external water replenishing device, and then the water storage unit (2) transfers the water inside the water storage unit (2) to the sand inside the conical inner frame (10), that is, replenishing water to the roots of the seedlings in the conical inner frame (10); S3, water volume regulation: the support unit (5) is used to support the sapling to prevent it from tilting, and the winding assembly (6) cooperates with the support unit (5) to adjust the water supply of the water storage unit (2) according to the growth of the sapling and the change of its outer diameter; S4, collecting water: the collecting component (4) is used to seal the upper end of the conical inner frame (10) in the initial state to prevent the water inside the conical frame (1) from evaporating due to sunlight. When it rains, the collecting component (4) is unfolded to allow rainwater to enter the sand inside the conical inner frame (10), while increasing the water receiving area so that rainwater can enter the water storage unit (2) for storage.

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