Sand blocking barrier and sand blocking wall

Abstract

The embodiment of the utility model provides a sand blocking barrier and a sand blocking wall. The sand blocking barrier comprises a horizontally-arranged base and a vertically-arranged wind shield. A mounting groove is formed in the base, a connecting piece is arranged on the wind shield, and the shape of the connecting piece is matched with that of the mounting groove; the connecting piece is embedded and mounted in the mounting groove, so that the wind shield can be fixedly mounted on the base; the wind shield is further provided with a ventilation grid, and the ventilation grid is used for constructing an air channel which is obliquely upward relative to the horizontal plane on the windward side of the wind shield. The sand blocking device is easy to maintain and simple in structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind-sand protection, and in particular to a sand-blocking barrier and a sand-blocking wall. BACKGROUND

[0002] The sand-blocking device is mainly applied to the wind-sand roadbed plane protection engineering of highways and railways. When the surface wind passes through the sand-blocking device, the sand-blocking device plays an intercepting role in the form of an obstacle to the moving sand particles, thereby weakening the ability of the surface wind to carry the sand particles.

[0003] At present, the types of the sand-blocking device include grass squares, sand-blocking nets and sand-blocking plates. However, the grass squares have a short maintenance time, the sand-blocking nets are prone to damage, and both of them need to be frequently replaced; the sand-blocking plates have a large self-weight, and a complex support structure is needed to cope with the continuous impact of the wind-sand.

[0004] Therefore, how to provide a sand-blocking device that is easy to maintain and has a simple structure is a problem that needs to be solved by the present application. CONTENT OF THE UTILITY MODEL

[0005] The embodiments of the present application provide a sand-blocking barrier and a sand-blocking wall to solve the problem of how to provide a cheap and easy-to-maintain sand-blocking device.

[0006] In a first aspect, the embodiments of the present application provide a sand-blocking barrier, comprising: a base arranged horizontally, and a wind-blocking plate arranged vertically.

[0007] The base is provided with a mounting groove, and the wind-blocking plate is provided with a connecting piece, the shape of the connecting piece matching the shape of the mounting groove;

[0008] The connecting piece is inlaidly installed in the mounting groove, so as to fixedly install the wind-blocking plate on the base;

[0009] The wind-blocking plate is further provided with a ventilation grille, the ventilation grille being used to construct an air passage inclined upward relative to a horizontal plane on the windward surface of the wind-blocking plate.

[0010] In a possible design, the base has a shape of a cuboid;

[0011] The mounting groove penetrates the base along the length direction of the base, the slot opening of the mounting groove is located on the upper surface of the base, and the shapes of the two penetration openings of the mounting groove on the base are the same;

[0012] The connecting piece is embeddedly installed in the mounting groove along the length direction or the height direction of the base.

[0013] In a possible design, the cross-sectional shape of the mounting groove in the width direction of the base is rectangular, trapezoidal or L-shaped.

[0014] In a possible design, the upper surface of the base is provided with a marker line for marking a center line in the width direction of the base, and the projection of the upper surface of the base;

[0015] The sand barrier further includes two pressing devices.

[0016] The two pressing devices are arranged on both sides of the marker line respectively, and each pressing device is configured to fasten the connecting piece in the mounting groove.

[0017] In a possible design, the two pressing devices are located in the first position or the second position.

[0018] When each pressing device 230 is located in the second position, the distance between the pressing device 230 and the through hole is the same as the distance between the pressing device 230 and the marker line 220 when the pressing device 230 is located in the first position.

[0019] In a possible design, the mounting groove is arranged on one side in the width direction of the base, and at least one anchor hole is arranged on the other side in the width direction of the base.

[0020] The sand barrier further includes at least one anchor bolt, and the number of the anchor bolts is the same as the number of the anchor holes.

[0021] In a possible design, the other side in the width direction of the base is further provided with a plurality of grass planting holes.

[0022] The cross-sectional area of the grass planting hole in the height direction of the base and / or the density of the grass planting hole are inversely related to the distance of the grass planting hole, where the distance of the grass planting hole refers to the distance between the corresponding grass planting hole and the mounting groove.

[0023] In a possible design, the wind deflector is provided with two connecting pieces.

[0024] The two connecting pieces are centrally symmetric relative to the center point of the wind deflector.

[0025] In a possible design, the ventilation grille includes a grille frame and a plurality of grille pieces fixedly installed on the grille frame and parallel to each other.

[0026] The center line in the length direction of each grille piece is parallel to the center line in the length direction of the wind deflector.

[0027] The height on the windward side of the wind deflector of each grille piece is lower than the height on the leeward side of the wind deflector.

[0028] In a second aspect, the embodiments of the present application provide a sand barrier wall, including a plurality of sand barriers according to any one of the first aspect.

[0029] Each sand barrier includes a horizontally arranged base and a vertically arranged wind deflector.

[0030] Each base except the first or last is fixedly installed with two wind baffles which are mirror symmetrical relative to the target vertical plane; wherein the target vertical plane refers to the vertical plane where the center line of the width direction of the corresponding base is located.

[0031] The sand barrier provided by the embodiment of the application comprises a horizontally arranged base and a vertically arranged wind baffle; the base is provided with a mounting groove, the wind baffle is provided with a connecting piece, the shape of the connecting piece matches the shape of the mounting groove; the connecting piece is inlaidly installed in the mounting groove, so as to fix the wind baffle on the base; the wind baffle is further provided with a ventilation grille, the ventilation grille is used to construct an air passage which is inclined upward relative to the horizontal plane on the windward surface of the wind baffle. The following technical effects are achieved: the base is horizontally arranged, so as to bear the weight of the sand barrier and the impact force and overturning moment exerted by the sand on the sand barrier as much as possible, the stability of the sand barrier is improved, the problem that the sand barrier in the prior art needs a complex support structure is solved; the ground surface wind speed is reduced by the wind baffle fixedly installed on the base, the problem that the sand barrier in the prior art needs frequent replacement is solved; the ground surface wind speed is further reduced and the deposition of sand and gravel behind the wind baffle is strengthened by the ventilation grille provided on the wind baffle. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0033] Figure 1 The scene schematic diagram of the sand barrier provided by the embodiment of the present application;

[0034] Figure 2 The structure schematic diagram of the sand barrier provided by the embodiment of the present application;

[0035] Figure 3 The rear view of the sand barrier provided by the embodiment of the present application;

[0036] Figure 4 The structure schematic diagram of the sand barrier provided by the embodiment of the present application;

[0037] Marked:

[0038] 110-embankment; 120-sand barrier;

[0039] 200-base; 210-mounting groove; 220-marking line; 230-pressing device; 241-anchor hole; 242-anchor bolt; 250-grass planting hole;

[0040] 300 - wind deflector; 310 - connector; 320 - ventilation grille; 321 - grille frame; 322 - grille piece. DETAILED DESCRIPTION

[0041] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements, unless the context of use indicates otherwise. The following description of exemplary embodiments is not representative of all embodiments consistent with the present application. Rather, it is merely an example of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0042] In the embodiments of the present application, the terms "first", "second", and the like are used to distinguish between similar or identical items or components that have substantially the same function and action. Those skilled in the art will understand that the terms "first", "second", and the like do not limit the quantity or the order of execution, and the terms "first", "second", and the like do not necessarily mean different. It should be noted that the terms "exemplary" or "for example" in the embodiments of the present application are used to indicate an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the terms "exemplary" or "for example" are used to present the relevant concept in a specific manner. In the embodiments of the present application, "one or more" means one or more, and "multiple" means two or more.

[0043] It should be noted that "at the time" in the embodiments of the present application can be at the moment when a certain condition occurs, or can be within a period of time after a certain condition occurs, which is not specifically limited in the embodiments of the present application. In addition, the sand barrier provided in the embodiments of the present application is only an example, and the sand barrier can include more or less content.

[0044] In order to clearly understand the technical solutions of the present application, the prior art solutions are first described in detail. The sand blocking device is mainly applied to the sand and wind roadbed plane protection engineering of highways and railways. When the surface wind passes through the sand blocking device, the sand blocking device reduces the surface wind speed by increasing the surface roughness and changing the wind speed profile. The sand blocking device plays an intercepting role in the form of an obstacle to the moving sand and gravel, and weakens the ability of the surface wind to transport the sand and gravel. The principle of increasing the surface roughness is that the setting of the sand blocking device significantly increases the surface roughness. The increase in the roughness makes the surface wind receive greater resistance when passing through, thereby reducing the wind speed and reducing the transport capacity of the surface wind to the sand and gravel. The principle of changing the wind speed profile is that the setting of the sand blocking device artificially changes the wind speed profile, i.e. the velocity distribution of the surface wind in the vertical direction. The surface wind is forced to rise when approaching the sand blocking device, and sharply drops after passing through the sand blocking device. The rising and dropping process produces strong vortex, thereby consuming the kinetic energy of the surface wind.

[0045] At present, the types of sand blocking devices include grass checkerboard, sand blocking net and sand blocking plate. The grass checkerboard is a sand control method for preventing wind and sand and conserving water. It forms a network structure by setting wheat straw or rice straw into a 1m x 1m square shape on the surface of a mobile sand dune, and is connected into a piece, thereby constructing a miniature protective belt in the desert. However, long-term wind and sand erosion will cause the structure of the grass checkerboard to be damaged, even completely buried or destroyed, thereby shortening its service life and causing the grass checkerboard to have a short maintenance time.

[0046] The material of the sand blocking net is usually high-density polyethylene (HDPE). HDPE is a thermoplastic resin with high crystallinity and non-polarity, and has the characteristics of high toughness, strong wear resistance and strong cold resistance. However, HDPE is prone to softening in a high-temperature environment. Long-term exposure to a high-temperature environment and ultraviolet radiation may cause it to age and become brittle, thereby causing the sand blocking net to be easily damaged.

[0047] The sand blocking plate has a large self-weight, and its structural design may not be able to withstand the continuous impact of wind and sand. If the design is unreasonable, such as the plate surface being too thin, the support structure being insufficient or the strength of the connecting piece being insufficient, the wind resistance of the sand blocking plate will be reduced.

[0048] In summary, the grass checkerboard has a short maintenance time, the sand blocking net is easily damaged, and both of them need to be frequently replaced. The sand blocking plate has a large self-weight, and needs a complex support structure to cope with the continuous impact of wind and sand.

[0049] Therefore, in view of the above technical problems existing in the prior art, the embodiments of the present application provide a sand blocking barrier and a sand blocking wall, which can be used in the field of sand and wind protection, and aim to provide a sand blocking device which is easy to maintain and has a simple structure.

[0050] The application scenarios of the sand barrier provided in the embodiments of the present application are introduced below. Figure 1 The scenario diagram of the sand barrier provided in the embodiments of the present application is shown. It should be noted that, Figure 1 the diagram only shows examples of scenarios in which the embodiments of the present application can be applied, to help those skilled in the art understand the technical content of the present application, but does not mean that the embodiments of the present application cannot be used in other devices, systems, environments or scenarios.

[0051] As Figure 1 shown, a sand barrier application scenario is shown, including a roadbed 110 of a highway or railway, and a plurality of sand barriers 120 arranged on the windward side of the roadbed 110. The sand barriers 120 are used to block and intercept sand and dust from the upwind direction, to reduce the direct impact of sand and dust on the roadbed 110.

[0052] The sand barriers 120 are arranged in areas where sand and dust is more serious. In order to ensure the protection effect of the sand barriers 120 and at the same time avoid interference with traffic, the sand barriers 120 are usually arranged at a distance from the roadbed 110, which can be tens of meters to hundreds of meters, according to factors such as sand and dust intensity, roadbed grade and design elements. At the same time, the sand barriers 120 are at an angle to the prevailing wind direction (the prevailing wind direction is shown by the arrow in the figure). In order to maximize the blocking and interception of sand and dust from the upwind direction, the sand barriers 120 can be perpendicular to the prevailing wind direction.

[0053] The embodiments of the present application are introduced below in conjunction with the drawings of the specification.

[0054] Figure 2 The structural diagram of the sand barrier provided in the embodiments of the present application is shown. As Figure 2 shown, the embodiments of the present application provide a sand barrier, which includes a base 200 arranged horizontally, and a wind shield 300 arranged vertically.

[0055] Specifically, the base 200 serves as the basic structure of the sand barrier, for supporting the entire sand barrier. The base 200 is arranged horizontally, to bear as much as possible the weight of the sand barrier, and the impact force and overturning moment exerted by sand and dust on the sand barrier, especially on the wind shield 300 in the sand barrier, to ensure that the sand barrier is stable at the arranged position.

[0056] The base 200 is provided with a mounting groove 210, and the wind shield 300 is provided with a connecting piece 310, the shape of the connecting piece 310 matching the shape of the mounting groove 210;

[0057] The connecting piece 310 is inlaidly mounted in the mounting groove 210, to facilitate the fixed installation of the wind shield 300 on the base 200.

[0058] Specifically, the mounting groove 210 and the base 200 can be integrally formed, or can be processed by cutting, machining or stamping; the connecting piece 310 and the wind deflector 300 can be integrally formed, or can be fixed together by bolt connection, adhesion or interference fit; therefore, the connecting piece 310 is embedded and installed in the mounting groove 210, and the wind deflector 300 is fixed and installed on the base 200.

[0059] The connecting piece 310 matches the mounting groove 210, which not only facilitates installation and maintenance, but also enables the connecting piece 310 to closely match the mounting groove 210, effectively preventing the wind deflector 300 from shaking and falling off during use, and enhancing the stability of the sand barrier. The connecting piece 310 and the mounting groove 210 can be interference fit, so that the connecting piece 310 can be embedded and installed in the mounting groove 210 by cold mounting, hot mounting or pressing method; the connecting piece 310 and the mounting groove 210 can also be transition fit or clearance fit, so that mechanical locking devices, adhesives or elastic materials can be arranged therebetween to ensure close fit.

[0060] The wind deflector 300 is also provided with a ventilation grille 320, which is used to construct an air passage upwardly inclined relative to the horizontal plane on the windward surface of the wind deflector 300.

[0061] Specifically, when the wind sand passes through the wind deflector 300, the wind deflector 300 hinders the wind sand, so that the wind sand needs to be dispersed, flow around and deflected when passing through the wind deflector 300, and the ground surface wind speed will be significantly reduced.

[0062] The ventilation grille 320 provided on the wind deflector 300 is also called ordered gap or air permeable design. Compared with the existing sand barrier device, the ground surface wind passing through the air passage constructed by the ventilation grille 320 will produce stronger vortex to further reduce the ground surface wind speed. At the same time, the ground surface wind passing through the air passage will produce obvious speed gradient change, and form obvious low speed area behind the wind deflector 300, which strengthens the deposition of sand and gravel behind the wind deflector 300.

[0063] The pitch and span of the ventilation grille 320, and the angle between the air passage and the horizontal plane, can be determined according to the material of the wind deflector 300 and the parameters of the wind sand. Generally speaking, the larger the ground surface wind speed and / or wind direction change, the larger the angle of the air passage should be, so as to better disperse the ground surface wind and guide the deposition of sand and gravel. Therefore, the angle of the air passage can be adjustable, and the technician adjusts the angle according to these factors on the site; the angle of the air passage can also be fixed, and the technician determines the angle in advance according to the arrangement position of the sand barrier; further, a plurality of angles of the sand barrier are prepared in advance, and the technician selects the appropriate angle of the sand barrier according to the arrangement position of the sand barrier.

[0064] The sand barrier provided by the embodiment of the application comprises a base arranged horizontally and a wind baffle arranged vertically; the base is provided with a mounting groove, the wind baffle is provided with a connecting piece, the shape of the connecting piece matches the shape of the mounting groove; the connecting piece is embeddedly mounted in the mounting groove, so as to fix and mount the wind baffle on the base; the wind baffle is further provided with a ventilation grille, the ventilation grille is arranged on the windward surface of the wind baffle, and an air passage is constructed upwardly and obliquely relative to the horizontal plane. The following technical effects are achieved: the base is arranged horizontally, so as to bear the weight of the sand barrier and the impact force and overturning moment exerted by the sand and wind on the sand barrier as much as possible, the stability of the sand barrier is improved, the problem that the sand barrier device in the prior art needs a complex support structure is solved; the ground surface wind speed is reduced by the wind baffle fixedly mounted on the base, the problem that the sand barrier device in the prior art needs frequent replacement is solved; the ground surface wind speed is further reduced by the ventilation grille arranged on the wind baffle, and the deposition of sand and gravel behind the wind baffle is strengthened.

[0065] In a possible design, the base 200 is in the shape of a cuboid;

[0066] The mounting groove 210 penetrates the base 200 along the length direction of the base 200, the slot opening of the mounting groove 210 is located on the upper surface of the base 200, and the shapes of the two penetration openings of the mounting groove 210 on the base 200 are the same;

[0067] The connecting piece 310 is embeddedly mounted in the mounting groove 210 along the length direction or the height direction of the base 200.

[0068] Specifically, the base 200 is in the shape of a cuboid, and the shapes of the upper surface and the lower surface of the base 200 are both rectangles. The former increases the length of the wind baffle 300, and further increases the sand blocking effect of the sand barrier; and the latter increases the contact area of the sand barrier with the ground, and further increases the stability of the sand barrier.

[0069] The mounting groove 210 comprises an upwardly open slot opening, the connecting piece 310 can be embeddedly mounted in the mounting groove 210 along the height direction of the base 200 (i.e. the direction from the lower surface to the upper surface of the base 200) by the downward pressing manner or separated from the mounting groove 210 by the upward pulling manner through the slot opening; the mounting groove 210 further comprises two left and right penetration openings, the connecting piece 310 can be embeddedly mounted in or separated from the mounting groove 210 along the length direction of the base 200 (i.e. the direction perpendicular to the height direction and parallel to the longer side surface of the base 200) by the sliding manner through the two penetration openings.

[0070] The technical effect of the embodiment of the application is that the connecting piece is embeddedly mounted in the mounting groove along the length direction or the height direction of the base, and the problem of how to embed or separate the connecting piece in or from the mounting groove during the installation and maintenance of the sand barrier is solved.

[0071] In a possible design, the cross-sectional shape of the mounting groove 210 in the width direction of the base 200 is rectangular, trapezoidal or L-shaped.

[0072] Specifically, when the cross-sectional shape is rectangular, the connecting piece 310 can be embedded into the mounting groove 210 along the length direction or the height direction of the base 200, facilitating installation and maintenance; when the cross-sectional shape is trapezoidal or L-shaped, the connecting piece 310 can be embedded into the mounting groove 210 along the length direction of the base 200, reducing the degree of freedom of the connecting piece 310 in the height direction relative to the mounting groove 210, to improve the tightness of the assembly between the connecting piece 310 and the mounting groove 210.

[0073] Figure 3 A rear view of the sand barrier provided in the embodiments of the present application is shown. The embodiment is a view projected on the leeward surface of the wind deflector 300. Figure 2 Based on the embodiment, the structure of the sand barrier is described in detail through the rear view of the sand barrier (i.e., the view projected on the leeward surface of the wind deflector 300). As shown in Figure 3 In a possible design, the upper surface of the base 200 is provided with a marker line 220, which is used to mark the center line in the width direction of the base 200, and the view projected on the upper surface of the base 200.

[0074] The sand barrier further includes two pressing devices 230.

[0075] The two pressing devices 230 are arranged on the two sides of the marker line 220 respectively, and each pressing device 230 is used to fasten the connecting piece 310 in the mounting groove 210.

[0076] Specifically, when the connecting piece 310 is in transition fit or clearance fit with the mounting groove 210, the pressing device 230 can fasten the connecting piece 310 in the mounting groove 210. The pressing device 230 can adopt various pressing forms, including but not limited to spring pressing, locking pin locking and clamp locking, etc. Among them, the structure of the spring pressing can be that one end of the spring is fixed on the mounting groove 210, and the other end is in contact with the connecting piece 310, and the connecting piece 310 is fastened in the mounting groove 210 by the elastic force of the spring; the structure of the locking pin locking can be that a locking hole is arranged at a specific position of the mounting groove 210, and a locking pin is inserted into the locking hole to fasten the connecting piece 310 in the mounting groove 210 by mechanical locking; the structure of the clamp locking can be that a rubber sealing ring is placed at the gap between the mounting groove 210 and the connecting piece 310, a clamp is buckled outside the rubber sealing ring, and the clamp is fastened by a bolt, so that the connecting piece 310 is fastened in the mounting groove 210 by the elastic force of the rubber sealing ring; at the same time, the rubber sealing ring also has good sealing performance, and sand and gravel cannot deposit at the gap between the mounting groove 210 and the connecting piece 310, further reducing the wear of the connecting piece 310.

[0077] When the pressing device 230 is installed, the position of the pressing device 230 is determined according to the mark line 220. The distance between the two pressing devices 230 and the mark line 220 is equal, which ensures that the pressure applied by the pressing device 230 on the connecting piece 310 is uniformly distributed, avoiding the aggravation of unilateral wear of the connecting piece 310 caused by unilateral fastening, and further avoiding the failure of fastening.

[0078] In other embodiments, when the cross-sectional shape of the installation slot 210 in the width direction of the base 200 is trapezoidal or L-shaped, the hypotenuse or short side of the connecting piece 310 is located on one side of the windward surface of the deflector 300, and the pressing device 230 is located on the other side of the leeward surface of the deflector 300, so as to ensure the tightness of the connecting piece 310.

[0079] In a possible design, the two pressing devices 230 are located in the first position or the second position.

[0080] When located in the second position, the distance between each pressing device 230 and the through hole is the same as the distance between each pressing device 230 and the mark line 220 when located in the first position.

[0081] Specifically, the connecting piece 310 bears the pressure applied by the pressing device 230, and the distance between the two pressing devices 230 should not be too large. If the distance is too large, the connecting piece 310 is easy to be convex, which affects the tightness of the connecting piece 310. Therefore, according to the type and size of the pressing device 230 and the length of the installation slot 210, the distance between the two pressing devices 230 is determined, and then the first position is determined on both sides of the mark line 220 according to the distance. By placing the two pressing devices 230 in the first position, the convexity of the connecting piece 310 is avoided.

[0082] The second position is determined according to the first position, that is, the distance between the two pressing devices 230 determined according to the above process, and the second position is determined between the two through holes. Therefore, by placing the two pressing devices 230 in the second position, the same effect as placing them in the first position is achieved.

[0083] According to the compression form of the compression device 230, the compression device 230 is switched from the first position to the second position, or from the second position to the first position. For example, when the compression form of the compression device 230 is spring compression, one end of each of the two springs is fixed on the first position of the mounting groove 210; when switched to the second position, the one end of the spring is disassembled from the mounting groove 210 and is fixed on the second position of the mounting groove 210 again. For another example, when the compression form of the compression device 230 is locking pin locking, the locking pin is inserted into the locking hole provided at the first position of the mounting groove 210; when switched to the second position, the locking pin is disassembled from the locking hole and is inserted into the locking hole provided at the second position of the mounting groove 210 again.

[0084] The application scenarios of the first position and the second position will be described below.

[0085] In order to effectively reduce the direct influence of wind sand on the roadbed, a plurality of sand barriers are usually used to block and intercept the wind sand from the upwind direction at the same time. These sand barriers can be arranged in a straight line or according to the bending degree curve of the roadbed. When arranged in a straight line, they can be arranged in a flat manner or in a staggered manner. The flat arrangement is shown in the figure, that is, one wind shield 300 is fixedly installed on each base 200, and at this time, the two compression devices 230 are located at the first position; the staggered arrangement is that one wind shield 300 is fixedly installed on one side of the marker line 220 on the first or last base 200, and two wind shields 300 that are mirror images of the marker line 220 are fixedly installed on each base 200 except the first or last base 200, and at this time, the two compression devices 230 are located at the second position. Figure 1

[0086] The technical effect of the embodiment of the present application is that the two compression devices are located at the first position or the second position, which provides multiple fastening modes and improves the flexibility of the arrangement of the sand barrier.

[0087] In a possible design, the mounting groove 210 is arranged on one side of the base 200 in the width direction, and at least one anchor hole 241 is arranged on the other side of the base 200 in the width direction;

[0088] The sand barrier further comprises at least one anchor bolt 242, and the number of the at least one anchor bolt 242 is the same as the number of the at least one anchor hole 241.

[0089] ​Specifically, when the wind and sand are large, the impact force and overturning moment exerted on the wind shield 300 by the wind and sand are also large, and the base 200 alone may not be able to effectively ensure the stability of the sand barrier. Therefore, at least one anchor hole 241 is provided on the other side of the base 200 in the width direction, and an anchor bolt 242 is inserted into the anchor hole 241 and into the sand layer underground. The anchor bolt 242 is tightly combined with the sand to provide additional anti-overturning moment to prevent the sand barrier from overturning or sliding.

[0090] To ensure uniform distribution of the anti-overturning moment, the anchor holes 241 should be uniformly arranged. When the number of anchor holes 241 is one, the anchor hole 241 can be arranged on the center line of the base 200 in the width direction, i.e. on the mark line 220 or the extension line of the mark line 220; when the number of anchor holes 241 is multiple, the multiple anchor holes 241 can be mirror-symmetric with respect to the mark line 220 and form a horizontal array. Typically, the number of anchor holes 241 is two or three. At the same time, since the sand barrier needs to be maintained and replaced regularly, the anchor bolt 242 is a mechanical anchor bolt, which mainly utilizes the friction or locking effect between the anchor bolt 242 and the anchor hole 241 to achieve anchoring.

[0091] The technical effect of the embodiments of the present application is that the stability of the sand barrier is further increased by the anchor bolt and the anchor hole.

[0092] In other embodiments, one wind shield 300 is fixedly installed on two bases 200. When the two bases 200 are offset, the wind shield 300 may be subjected to tensile force or shear stress, causing the wear of the connecting piece 310 to be aggravated, and even causing the wind shield 300 to be damaged. The anchor bolt 242 can avoid the offset between the two bases 200, thereby avoiding the above problems.

[0093] In a possible design, a plurality of grass planting holes 250 are further provided on the other side of the base 200 in the width direction;

[0094] The cross-sectional area of the grass planting hole 250 in the height direction of the base 200, and / or the density of the grass planting hole 250, are inversely related to the distance of the grass planting hole; wherein the distance of the grass planting hole refers to the distance between the corresponding grass planting hole 250 and the installation groove 210.

[0095] Specifically, sand and gravel will accumulate around the sand barrier and form a certain degree of sand accumulation area, and part of the seeds of the plants may be carried by the wind and sand and accumulated in this area. Therefore, a plurality of grass planting holes 250 are provided on the base 200, so that these seeds can germinate and take root in the grass planting holes 250. The grown plants not only have the effect of preventing wind and sand, but also can intercept water and improve the soil, thereby improving the local ecological environment. Further, artificial seeding can be performed at the grass planting holes 250.

[0096] Considering that the closer the distance to the windbreak 300, the higher the thickness of the sand accumulation area, and the more likely the seeds to accumulate, the smaller the distance between the planting hole 250 and the mounting groove 210, i.e. the smaller the planting hole distance, the larger the cross-sectional area and / or density of the planting hole 250 should be. Adjusting the cross-sectional area and / or density of the planting hole according to the planting hole distance has the effect of increasing the total area of the planting hole as much as possible without affecting the ability of the base 200 to support the windbreak 300, so that as many plants as possible can grow.

[0097] In a possible design, the windbreak 300 is provided with two connectors 310;

[0098] The two connectors 310 are centrally symmetric relative to the center point of the windbreak 300.

[0099] Specifically, the connector 310 will inevitably wear out, even bulge or crush under the pressure of the pressing device 230, thereby affecting the tightness of the connector 310. To prolong the service life of the sand barrier, two connectors 310 are provided on the windbreak 300, and when one connector 310 is severely worn, bulged or crushed, the other connector 310 is replaced for continued use

[0100] The two connectors 310 are centrally symmetric relative to the center point of the windbreak 300, so that either connector 310 can be inlaidly installed in the mounting groove 210, and the tightness of the assembly between the connector 310 and the mounting groove 210 can be ensured.

[0101] The technical effect of the embodiment of the application is that the service life of the sand barrier is prolonged by the two centrally symmetric connectors.

[0102] In a possible design, the ventilation grille 320 includes a grille frame 321 and a plurality of grille pieces 322 fixedly installed on the grille frame 321 and parallel to each other;

[0103] The center line of the length direction of each grille piece 322 is parallel to the center line of the length direction of the windbreak 300;

[0104] The height of each grille piece 322 on the windward side of the windbreak 300 is lower than the height on the leeward side of the windbreak 300.

[0105] Specifically, the ventilation grille 320 includes a grille frame 321 and a plurality of grille pieces 322. The grille frame 321 can be integrally formed with the wind deflector 300, or can be fixed together by means of bolting, bonding, interference fit, etc. The grille frame 321 is used to fix the plurality of grille pieces 322 and to be fixed on the wind deflector 300. The plurality of grille pieces 322 can be integrally formed with the grille frame 321, or can be fixed together by means of welding, bonding, or mounting clips, etc. The plurality of grille pieces 322 are used to build the air passage. The sand and wind enter the air passage from the windward side of the wind deflector 300, are lifted in the air passage, and leave the air passage from the leeward side of the wind deflector 300.

[0106] To ensure the strength and stability of the air passage, the materials of the grille frame 321 and the grille pieces 322 can be alloys, wear-resistant plastics, or high-molecular composite materials, etc. Further, the grille frame 321 is fixedly installed on the wind deflector 300, the wind deflector 300 is fixedly installed on the base 200, and the materials of the wind deflector 300 and the base 200 can be concrete, wear-resistant plastics, or high-molecular composite materials, etc.

[0107] In other embodiments, the wind deflector 300 and the grille frame 321 are integrated, i.e., the grille pieces 322 are directly fixedly installed on the wind deflector 300.

[0108] Figure 4 A structural schematic diagram of a sand-blocking wall provided by the embodiments of the present application is provided. The embodiments are based on the sand-blocking wall of the above embodiments. Figure 2 and Figure 3 The structure of the sand-blocking wall is described. As shown in Figure 4 The sand-blocking wall includes a plurality of sand-blocking barriers as in the above embodiments. Each sand-blocking barrier includes a horizontally arranged base 200 and a vertically arranged wind deflector 300.

[0109] Two wind deflectors 300 that are mirror images of each other with respect to a target vertical plane are fixedly installed on each base 200 except the first or last one. The target vertical plane refers to the vertical plane in which the center line of the width direction of the corresponding base 200 is located.

[0110] The sand-blocking wall provided by the embodiments of the present application has similar implementation principles and technical effects to those of one sand-blocking barrier in the above embodiments, which will not be described here again.

[0111] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sand barrier, characterized in that, The sand barrier comprises: a horizontally arranged base (200) and a vertically arranged wind deflector (300); the base (200) is provided with a mounting groove (210), and the wind deflector (300) is provided with a connecting piece (310), the shape of the connecting piece (310) matches the shape of the mounting groove (210); the connecting piece (310) is inlaidly mounted in the mounting groove (210) so as to fixedly mount the wind deflector (300) on the base (200); the wind deflector (300) is further provided with a ventilation grille (320), the ventilation grille (320) is used for constructing an air passage inclined upward relative to a horizontal plane on a windward surface of the wind deflector (300).

2. The sand barrier according to claim 1, wherein The base (200) is in the shape of a cuboid; the mounting groove (210) penetrates the base (200) along the length direction of the base (200), the slot opening of the mounting groove (210) is located on the upper surface of the base (200), and the two penetration openings of the mounting groove (210) on the base (200) are in the same shape; the connecting piece (310) is embedded in the mounting groove (210) along the length direction or the height direction of the base (200).

3. The sand barrier of claim 2, wherein, The cross-sectional shape of the mounting groove (210) in the width direction of the base (200) is rectangular, trapezoidal or L-shaped.

4. The sand barrier of claim 2, wherein, The upper surface of the base (200) is provided with a mark line (220), the mark line (220) is used for marking a center line in the width direction of the base (200) on the projection of the upper surface of the base (200); the sand barrier further comprises two pressing devices (230); the two pressing devices (230) are arranged on the two sides of the mark line (220) respectively, and each pressing device (230) is used for fastening the connecting piece (310) in the mounting groove (210).

5. The sand barrier of claim 4, wherein, The two pressing devices (230) are located in a first position or a second position; when each pressing device (230) is located in the second position, the distance between each pressing device (230) and the penetration opening is the same as the distance between each pressing device (230) and the mark line (220) when each pressing device (230) is located in the first position.

6. A sand barrier according to any one of claims 2-5, c h a r a c t e r i s e d in that When the mounting groove (210) is arranged on one side in the width direction of the base (200), at least one anchor hole (241) is arranged on the other side in the width direction of the base (200); the sand barrier further comprises at least one anchor bolt (242), and the number of the anchor bolts (242) is the same as the number of the anchor holes (241).

7. The sand barrier of claim 6, wherein, The other side in the width direction of the base (200) is further provided with a plurality of grass planting holes (250); the cross-sectional area of the grass planting hole (250) in the height direction of the base (200) and / or the density of the grass planting hole (250) are negatively correlated with the grass planting hole distance, wherein the grass planting hole distance refers to the distance between the corresponding grass planting hole (250) and the mounting groove (210).

8. A sand barrier according to any one of claims 2-5, c h a r a c t e r i s e d in that The wind deflector (300) is provided with two connecting pieces (310). The two connecting members (310) are centrally symmetric relative to a center point of the wind deflector (300).

9. The sand barrier of claim 8, wherein, The ventilation grille (320) comprises a grille frame (321) and a plurality of grille pieces (322) fixedly installed on the grille frame (321) and parallel to each other; A center line of the length direction of each grille piece (322) is parallel to a center line of the length direction of the wind deflector (300). The height of each grille piece (322) on the windward side of the wind deflector (300) is lower than the height on the leeward side of the wind deflector (300).

10. A sand fence, characterized in that Comprise: A plurality of sand barriers according to any one of claims 1-9; Each sand barrier comprises a horizontally arranged base (200) and a vertically arranged wind deflector (300). Two wind deflectors (300) are fixedly installed on each base (200) except the first or last one, and are mirror symmetric relative to a target vertical plane; wherein the target vertical plane refers to a vertical plane in which a center line of the width direction of the corresponding base (200) is located.

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