Windproof fence with adjustable open holes

By introducing adjustment components and mechanisms into the windbreak fence, the adjustment plate can switch between blocking and avoiding postures on the mesh, solving the problem that existing windbreak fences cannot adjust the shape of the openings and the ventilation rate, thus improving the windproof effect.

CN120990430APending Publication Date: 2025-11-21SHIJIAZHUANG TIEDAO UNIV +1
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Patent Information

Application Number
CN202511352041.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

Existing windbreak fences cannot adjust the shape of the openings and the ventilation rate according to different wind speeds, wind directions or environmental conditions, resulting in unsatisfactory windbreak performance.

Method used

Design a windproof fence including a fence body and an adjustment component. The adjustment component drives the adjustment plate to move radially along the mesh through the adjustment plate and adjustment mechanism, so as to achieve flexible adjustment of the shape and size of the mesh. The adjustment plate has a blocking and avoidance posture.

Benefits of technology

The windproof fence has improved its adaptability and wind resistance under different wind speeds, wind directions and climatic conditions, achieving the best windproof effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of fences, and particularly provides a windproof fence with adjustable open holes. The windproof fence comprises a fence body and a plurality of adjusting assemblies, and the fence body is provided with meshes. The adjusting assembly is arranged on the leeward side of the fence body and comprises adjusting plates and an adjusting mechanism, the multiple adjusting plates are arranged on the peripheries of the meshes in the circumferential direction of the meshes in a surrounding mode, and the adjusting plates have the shielding posture and the avoiding posture; the adjusting mechanism is arranged on the fence body and used for driving the multiple adjusting plates to move in the radial direction of the meshes so that the adjusting plates can be switched between the shielding posture and the avoiding posture. The multiple adjusting plates are driven by the adjusting mechanism to synchronously move in the diameter direction of the meshes, the meshes can be shielded, and therefore the hole penetrating rate is changed. The shape and the size of the meshes can be flexibly adjusted through the adjusting assembly, so that the adaptability and the wind resistance of the windproof fence under different wind speeds, wind directions and weather conditions are improved.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fences, and particularly relates to a windproof fence with adjustable openings. BACKGROUND

[0002] Wind load is a key factor to be considered in the design of windproof fences, especially when applied in environments with high wind speed and strong climate change. The size of the ventilation holes on the windproof fence has a direct impact on the ventilation rate and windproof effect. In practical applications, there may be significant differences in wind speed, wind direction, and temperature and humidity conditions at different heights. Wind is usually more complex near the ground, affected by terrain and obstacles, and the wind speed is low. At higher altitudes, the wind speed may be strong. Therefore, if the opening shape of the windproof fence remains unchanged in the height direction, it may not be able to best adapt to the wind speed differences brought about by the height changes, thereby affecting the windproof effect.

[0003] Existing rigid windproof fences are mostly designed with fixed opening rates and opening shapes, and cannot adjust their ventilation and wind resistance according to different wind speeds, wind directions, or environmental conditions. These traditional windproof fence structures are usually relatively simple, lack flexible adjustment means and efficient wind resistance, and cannot adjust the opening shape and ventilation rate according to wind speed and climate change, resulting in unsatisfactory windproof effect under certain conditions. SUMMARY

[0004] The present application provides a windproof fence with adjustable openings, which aims to solve the problem that the windproof fence in the prior art cannot adjust the opening shape and ventilation rate according to wind speed and climate change.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is to provide a windproof fence with adjustable openings, comprising a fence body and a plurality of adjustment components, the fence body having a plurality of mesh holes penetrating the thickness of itself, and the adjustment components corresponding one-to-one to the mesh holes; the adjustment component comprises: a plurality of adjustment plates, respectively arranged on the leeward side of the fence body and surrounding the outer periphery of the mesh hole along the circumferential direction of the mesh hole, the adjustment plate having a shielding posture and an avoiding posture, when in the shielding posture, the adjustment plate at least partially covers the mesh hole, and when in the avoiding posture, the adjustment plate is hidden on the leeward side of the fence body; and an adjustment mechanism arranged on the fence body, for driving a plurality of adjustment plates to move along the radial direction of the mesh hole, so as to switch the adjustment plate between the shielding posture and the avoiding posture.

[0006] In a possible implementation manner, the adjustment component further comprises a mounting plate, the mounting plate being arranged on the leeward side of the fence body, the mounting plate having an avoiding hole penetrating the mesh hole; the adjustment plate and the adjustment mechanism are respectively arranged on the mounting plate.

[0007] In a possible implementation, the mounting plate is provided with a first guide rail, and the adjusting plates are slidingly arranged on the first guide rail.

[0008] In a possible implementation, the mesh hole is a square hole, and an edge adjacent to the mesh hole of the adjusting plate is an arc-shaped edge. When in the shielding posture, a plurality of the adjusting plates can be enclosed to form a circular ventilation hole.

[0009] In a possible implementation, the mesh hole is a square hole, and an edge adjacent to the mesh hole of the adjusting plate is a straight edge. When in the shielding posture, a plurality of the adjusting plates can be enclosed to form a square ventilation hole.

[0010] In a possible implementation, the adjusting plate is provided with a first accommodating groove and a second accommodating groove at two ends thereof respectively, the first accommodating groove is arranged on a side of the adjusting plate adjacent to the mounting plate, and the second accommodating groove is arranged on a side of the adjusting plate away from the mounting plate. When the adjusting plate is in the shielding posture, the end portions of two adjusting plates adjacent to each other are overlapped with each other to be accommodated in the corresponding first accommodating groove or second accommodating groove respectively.

[0011] In a possible implementation, the adjusting mechanism comprises: a plurality of lead screws arranged at intervals along the circumferential direction of the avoiding hole, the lead screws are rotationally matched with the mounting plate, and the adjusting plates are threadedly matched with the corresponding lead screws; and a plurality of first driving motors arranged on the mounting plate respectively, for driving the corresponding lead screws to rotate around the axis thereof.

[0012] In a possible implementation, the mounting plate is provided with a second guide rail on the outer periphery of the avoiding hole, the second guide rail is circular, the adjusting plate is provided with a guide block on the side away from the mounting plate, and the adjusting mechanism comprises: a driving ring arranged on the side of the adjusting plate away from the mounting plate and rotationally matched with the second guide rail, the inner ring of the driving ring is provided with a plurality of driving claws corresponding to the adjusting plates, the driving claws are arranged with arc-shaped driving grooves, one end of the driving groove is adjacent to the center of the driving ring, and the other end is adjacent to the outer periphery of the driving ring, the guide block is slidingly matched with the corresponding driving groove, and the outer ring of the driving ring is provided with driving teeth; and a second driving motor arranged on the mounting plate, and the output shaft of the second driving motor is in transmission connection with the driving teeth.

[0013] In a possible implementation, the fence body comprises: Two columns are spaced apart in the horizontal direction. The two columns are respectively provided with mounting grooves on the side adjacent to each other, and the sidewalls of the mounting grooves are provided with mounting holes. A fence panel, with its two sides respectively accommodated in the mounting groove, the fence panel having the mesh, and the adjusting plate and the adjusting mechanism respectively disposed on the fence panel; and A fastener is provided on the column, the fastener is threaded into the mounting hole, and the end of the fastener abuts against the fence panel.

[0014] In one possible implementation, the adjustment assembly further includes a plurality of movable plates, each corresponding to one of the adjustment plates. The movable plates are located on the side of the adjustment plate adjacent to the mesh openings. The movable plates are rotatably engaged with the adjustment plates. The pivot of the movable plate is provided with a torsion spring, which is configured to exert a preload force to cause the movable plate to abut against the fence body.

[0015] Compared with the prior art, the beneficial effects of the windproof fence with adjustable opening provided by the present invention are: This invention provides a windproof fence with adjustable openings, comprising a fence body and multiple adjustment components. The adjustment components are arranged one-to-one around the mesh openings of the fence body. An adjustment mechanism drives multiple adjustment plates to move synchronously along the diameter of the mesh openings, thereby obstructing the mesh and altering the permeability. The adjustment components allow for flexible adjustment of the mesh shape and size, improving the windproof fence's adaptability and wind resistance under different wind speeds, directions, and climatic conditions. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a windproof fence with adjustable openings when forming square ventilation holes, provided by the present invention; Figure 2 A schematic diagram of the structure of a windproof fence with adjustable openings when forming circular ventilation holes, provided by the present invention; Figure 3 for Figure 2 Enlarged view of part A in the middle; Figure 4 This is a schematic diagram of the structure of the first implementation of the adjustment component in this invention; Figure 5 This is a structural schematic diagram of the second implementation of the adjustment component in this invention. Figure 1 ; Figure 6 This is a structural schematic diagram of the second implementation of the adjustment component in this invention. Figure 2 ; Figure 7 This is a schematic diagram of the third implementation of the adjustment component in the present invention when it is in an avoidance posture; Figure 8 Fig. 3 is a structural schematic view of a third implementation of the adjusting assembly in the present application in a shielding posture.

[0017] Legend of reference signs: 10, fence body; 11, stand column; 12, fence plate; 121, mesh hole; 13, fastener; 20, adjusting assembly; 21, adjusting plate; 211, first accommodating groove; 212, second accommodating groove; 213, guide block; 22, adjusting mechanism; 221, first driving motor; 222, driving ring; 2221, driving tooth; 2222, driving claw; 2223, driving groove; 223, second driving motor; 224, worm; 23, mounting plate; 231, avoiding hole; 232, first guide rail; 233, second guide rail; 24, movable plate. DETAILED DESCRIPTION

[0018] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0019] Please refer to Figures 1 to 8 , the following describes a perforated adjustable windproof fence provided by an embodiment of the present application.

[0020] Compared with the windproof fence in the prior art, the windproof fence in the present application has a larger size, a higher height and a larger area, the height thereof can reach 25 meters, the height thereof can also be greater than 25 meters, the mesh holes 121 on the windproof fence also have a larger size area, the height of the mesh holes 121 can reach 30 centimeters, the height thereof can also be greater than 30 centimeters, and the number of the mesh holes 121 is less than that of the windproof fence in the prior art.

[0021] The windproof fence in the present application can be arranged outside a huge building, a sea-crossing bridge, a solar photovoltaic power station, a wind power generation tower and other giant structures, and is used for protecting buildings with high price and large wind power influence.

[0022] For this purpose, please refer to Figures 1 to 4 The perforated adjustable windproof fence provided by the embodiment of the present application includes a fence body 10 and a plurality of adjusting assemblies 20, the fence body 10 has a plurality of mesh holes 121 penetrating through the thickness of the fence body 10, and the adjusting assemblies 20 correspond to the mesh holes 121 one by one.

[0023] The adjusting assembly 20 includes an adjusting plate 21 and an adjusting mechanism 22. The plurality of adjusting plates 21 are respectively arranged on the leeward side of the fence body 10 and are arranged around the outer periphery of the mesh hole 121 in the circumferential direction of the mesh hole 121. The adjusting plate 21 has a shielding posture and an avoiding posture. When in the shielding posture, the adjusting plate 21 at least partially covers the mesh hole 121. When in the avoiding posture, the adjusting plate 21 is hidden on the leeward side of the fence body 10. The adjusting mechanism 22 is arranged on the fence body 10 and is used to drive the plurality of adjusting plates 21 to move in the radial direction of the mesh hole 121, so as to switch the adjusting plate 21 between the shielding posture and the avoiding posture.

[0024] Compared with the prior art, the windproof fence with adjustable mesh holes provided by the present application has the following beneficial effects: The windproof fence with adjustable mesh holes provided by the present application includes a fence body 10 and a plurality of adjusting assemblies 20. The plurality of adjusting assemblies 20 are arranged around the mesh hole 121 of the fence body 10 one by one. The plurality of adjusting plates 21 are driven by the adjusting mechanism 22 to move synchronously in the diameter direction of the mesh hole 121, so as to shield the mesh hole 121 and change the transmissivity. The shape and size of the mesh hole 121 can be flexibly adjusted by the adjusting assembly 20, so as to improve the adaptability and wind resistance of the windproof fence under different wind speeds, wind directions and climate conditions.

[0025] The windproof fence can be used in the fields of wind reduction in photovoltaic sites, dust suppression of coal piles, wind and sand control, and road blocking of wind and snow. The fence body 10 is usually a metal plate. The mesh hole 121 is obtained by drilling or stamping on the metal plate. The mesh hole 121 can be circular, square, hexagonal, triangular or the like. A wind speed and direction sensor is installed on the fence body 10. The wind speed and direction sensor is used to monitor the environmental wind power in real time and adjust the shape and size of the mesh hole 121 by the adjusting assembly 20, so as to achieve the best windproof effect.

[0026] The adjusting assembly 20 includes a plurality of adjusting plates 21 and an adjusting mechanism 22. The adjusting plate 21 is usually a stainless steel metal plate. The adjusting mechanism 22 is used to drive the plurality of adjusting plates 21 to move close to or away from each other. The adjusting plate 21 can be provided in two, three, four or more numbers as needed. The adjusting assembly 20 has a plurality of forms that can be realized. The specific structure can be as shown in Figures 4 to 8

[0027] Please refer to Figures 4 to 8 In some possible embodiments, the adjusting assembly 20 further includes a mounting plate 23. The mounting plate 23 is arranged on the leeward side of the fence body 10 and is not easy to be damaged. A rain cover can be further arranged on the top of the fence body 10 and is used to shield rain and snow. The mounting plate 23 has an avoiding hole 231 that penetrates the mesh hole 121. The size of the avoiding hole 231 is greater than or equal to that of the mesh hole 121. The adjusting plate 21 and the adjusting mechanism 22 are respectively arranged on the mounting plate 23. The mounting plate 23 can be fixed on the fence body 10 by screws, welding or the like.​

[0028] Please refer to Figure 4 , Figure 6 , Figure 7 and Figure 8 In some possible embodiments, the mounting plate 23 is provided with a first guide rail 232, and the adjusting plate 21 is slidingly arranged in the first guide rail 232. The first guide rail 232 is used for guiding the adjusting plate 21 to move stably. Further, the two ends of the adjusting plate 21 can be respectively accommodated in the first guide rail 232, and the stability is higher.

[0029] Please refer to Figure 3 , Figure 7 and Figure 8 In some possible embodiments, the mesh hole 121 is a square hole, and the side adjacent to the mesh hole 121 of the adjusting plate 21 is an arc-shaped side. When in the shielding posture, the plurality of adjusting plates 21 can be surrounded to form a circular ventilation hole.

[0030] Please refer to Figure 1 , Figure 4 and Figure 5 In some possible embodiments, the mesh hole 121 is a square hole, and the side adjacent to the mesh hole 121 of the adjusting plate 21 is a straight side. When in the shielding posture, the plurality of adjusting plates 21 can be surrounded to form a square ventilation hole, and the side length of the square ventilation hole is smaller than the side length of the mesh hole 121.

[0031] Please refer to Figure 4 In some possible embodiments, the two ends of the adjusting plate 21 are respectively provided with a first accommodating groove 211 and a second accommodating groove 212. The first accommodating groove 211 is arranged on the side of the adjusting plate 21 adjacent to the mounting plate 23, and the second accommodating groove 212 is arranged on the side of the adjusting plate 21 away from the mounting plate 23. When the adjusting plate 21 is in the shielding posture, the end portions of the two adjusting plates 21 adjacent to each other overlap with each other to be respectively accommodated in the corresponding first accommodating groove 211 or second accommodating groove 212.

[0032] The adjusting plate 21 in the embodiment can be a long strip-shaped plate. The two ends of the adjusting plate 21 are respectively provided with a first accommodating groove 211 and a second accommodating groove 212. The first accommodating groove 211 and the second accommodating groove 212 are respectively located on the two side surfaces of the adjusting plate 21. The first accommodating groove 211 and the second accommodating groove 212 are respectively used for accommodating the end portions of the adjacent adjusting plates 21. When the adjusting plate 21 is in the shielding posture, the end portions of the plurality of adjusting plates 21 cross and overlap with each other. In this way, when facing strong wind weather, the overall structural stability of the adjusting assembly 20 is higher, and the adjusting plate 21 is not easy to shake.

[0033] Please refer to Figure 6In some possible embodiments, the adjusting mechanism 22 comprises a lead screw and a first driving motor 221. A plurality of lead screws are arranged along the circumferential direction of the avoiding hole 231, and the lead screws are rotationally fitted with the mounting plate 23. The adjusting plate 21 is threadedly fitted with the corresponding lead screw. A plurality of first driving motors 221 are respectively arranged on the mounting plate 23, and are used to drive the corresponding lead screw to rotate around the axis thereof. By controlling the forward rotation or the reverse rotation of the lead screw, the adjusting plate 21 is driven to move linearly along the first guide rail 232.

[0034] Referring to Figure 7 In some possible embodiments, the mounting plate 23 is provided with a second guide rail 233 on the outer periphery of the avoiding hole 231. The second guide rail 233 is circular. The adjusting plate 21 is provided with a guide block 213 on the side away from the mounting plate 23. The adjusting mechanism 22 comprises a driving ring 222 and a second driving motor 223. The driving ring 222 is arranged on the side of the adjusting plate 21 away from the mounting plate 23, and is rotationally fitted with the second guide rail 233. The inner ring of the driving ring 222 is provided with a plurality of driving claws 2222, which are in one-to-one correspondence with the adjusting plate 21. The driving claw 2222 is provided with an arc-shaped driving groove 2223. One end of the driving groove 2223 is adjacent to the center of the driving ring 222, and the other end is adjacent to the outer periphery of the driving ring 222. The guide block 213 is slidingly fitted in the corresponding driving groove 2223. The outer ring of the driving ring 222 is provided with a driving tooth 2221. The second driving motor 223 is arranged on the mounting plate 23. The output shaft of the second driving motor 223 is in transmission connection with the driving tooth 2221.

[0035] In the embodiment, the output shaft of the second driving motor 223 is provided with a worm 224. The worm 224 is in meshing transmission with the driving tooth 2221. The rotation of the worm 224 can drive the driving ring 222 to rotate by a small angle. When the driving ring 222 rotates, the adjusting plate 21 can be driven to move along the first guide rail 232.

[0036] Referring to Figure 1 and Figure 2 In some possible embodiments, the fence body 10 comprises a stand column 11, a fence plate 12 and a fastener 13. Two stand columns 11 are arranged in the horizontal direction and are spaced apart. The two stand columns 11 are respectively provided with a mounting slot on the side adjacent to each other. The side wall of the mounting slot is provided with a mounting hole. The fence plate 12 is respectively accommodated in the mounting slot on the two sides. The fence plate 12 has a mesh 121. The adjusting plate 21 and the adjusting mechanism 22 are respectively arranged on the fence plate 12. The fastener 13 is arranged on the stand column 11. The fastener 13 is threadedly fitted in the mounting hole. The end of the fastener 13 abuts against the fence plate 12.

[0037] Referring to Figure 1 and Figure 6In some possible embodiments, the adjusting assembly 20 further comprises a plurality of movable plates 24, the movable plates 24 corresponding to the adjusting plates 21 one by one, the movable plates 24 being arranged on one side of the adjusting plates 21 adjacent to the mesh holes 121, the movable plates 24 being rotationally matched with the adjusting plates 21 and being capable of moving together with the adjusting plates 21.

[0038] The rotating shaft of the movable plate 24 in the embodiment is provided with a torsional spring, the torsional spring being configured with a pre-tightening force for abutting the movable plate 24 against the fence body 10, when the wind force acting on the movable plate 24 is small, the movable plate 24 will not be blown, at this time, the movable plate 24 and the adjusting plate 21 can be regarded as a whole. When the wind force acting on the movable plate 24 is large, the torsional spring can be further compressed to offset the wind force acting on the movable plate 24. When the wind force decreases, the movable plate 24 is reset under the action of the spring force.

[0039] As the driving motor in the present application, the state of the driving motor can be monitored through a sensor, or the driving motor can be electrically connected to a controller for state monitoring. This technology can be used to monitor whether the motor is damaged, which will not be described here.

[0040] In addition, other intuitive means can also be used for observation. When it is necessary to explore the failed driving motor, the adjusting assembly 20 of the mesh hole 121 can be controlled to expand or shrink at the same time, and a UAV is used to take pictures and observe the opening of the mesh hole 121. The driving motor at the mesh hole 121 that cannot realize the opening adjustment is the failed driving motor, which is directly determined visually.

[0041] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be connected, or it can be detachable, or it can be integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs.

[0042] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] In the description of the application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description of the application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification.

[0044] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0045] It can be understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments, and the specific content of each combined embodiment will not be described here. After the description, it can be considered that the specification of the present application has described each combined embodiment, which can support different combined embodiments.

[0046] The above is only a preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A windbreak fence with adjustable apertures, characterised in that, The fence body (10) has a plurality of mesh holes (121) penetrating through the thickness of the fence body (10), and the adjusting assembly (20) corresponds to the mesh hole (121) one by one; the adjusting assembly (20) comprises: a plurality of adjusting plates (21) are respectively arranged on the leeward side of the fence body (10) and surround the outer periphery of the mesh hole (121) in the circumferential direction of the mesh hole (121), the adjusting plate (21) has a shielding posture and an avoiding posture, when in the shielding posture, the adjusting plate (21) at least partially covers the mesh hole (121), when in the avoiding posture, the adjusting plate (21) is hidden on the leeward side of the fence body (10); and an adjusting mechanism (22) is arranged on the fence body (10), and is used for driving a plurality of the adjusting plates (21) to move along the radial direction of the mesh hole (121), so that the adjusting plate (21) is switched between the shielding posture and the avoiding posture.

2. A windbreak fence according to claim 1 wherein, The adjusting assembly (20) further comprises a mounting plate (23), the mounting plate (23) is arranged on the leeward side of the fence body (10), the mounting plate (23) has an avoiding hole (231) penetrating through the mesh hole (121); the adjusting plate (21) and the adjusting mechanism (22) are respectively arranged on the mounting plate (23).

3. A windbreak fence according to claim 2, wherein, The mounting plate (23) is provided with a first guide rail (232), and the adjusting plate (21) is slidably arranged on the first guide rail (232).

4. A windbreak fence according to claim 2, wherein, The mesh hole (121) is a square hole, and one side of the adjusting plate (21) adjacent to the mesh hole (121) is an arc-shaped edge, when in the shielding posture, a plurality of the adjusting plates (21) can be surrounded to form a circular ventilation hole.

5. A windbreak fence according to claim 2, wherein, The mesh hole (121) is a square hole, and one side of the adjusting plate (21) adjacent to the mesh hole (121) is a straight edge, when in the shielding posture, a plurality of the adjusting plates (21) can be surrounded to form a square ventilation hole.

6. A windbreak fence according to claim 4 or 5 wherein, The two ends of the adjusting plate (21) are respectively provided with a first accommodating groove (211) and a second accommodating groove (212), the first accommodating groove (211) is arranged on the side of the adjusting plate (21) adjacent to the mounting plate (23), and the second accommodating groove (212) is arranged on the side of the adjusting plate (21) away from the mounting plate (23); When the adjusting plate (21) is in the shielding posture, the end portions of two adjusting plates (21) adjacent to each other are overlapped with each other, so as to be respectively accommodated in the corresponding first accommodating groove (211) or second accommodating groove (212).

7. A windbreak fence according to claim 2, wherein, The adjusting mechanism (22) comprises: a plurality of lead screws are arranged at intervals in the circumferential direction of the avoiding hole (231), the lead screw is rotationally matched with the mounting plate (23), and the adjusting plate (21) is threadedly matched with the corresponding lead screw; and a plurality of first driving motors (221) are respectively arranged on the mounting plate (23) and are used for driving the corresponding lead screw to rotate around the axis line thereof.

8. A windbreak fence according to claim 2, wherein, The mounting plate (23) is provided with a second guide rail (233) on the outer periphery of the avoiding hole (231), the second guide rail (233) is circular, the adjusting plate (21) is provided with a guide block (213) on the side away from the mounting plate (23), the adjusting mechanism (22) comprises: A driving ring (222) is arranged in the second guide rail (233), the outer ring of the driving ring (222) is provided with a driving tooth (2221), the inner ring of the driving ring (222) is provided with a plurality of driving claws (2222), the driving claws (2222) correspond to the adjusting plate (21) one by one, the driving claws (2222) are provided with arc-shaped driving grooves (2223), one end of the driving grooves (2223) is adjacent to the center of the driving ring (222), the other end is adjacent to the outer periphery of the driving ring (222), and the guide block (213) is slidably connected with the corresponding driving groove (2223); and A second driving motor (223) is arranged on the mounting plate (23), and the output shaft of the second driving motor (223) is in transmission connection with the driving tooth (2221).

9. An openable adjustable windbreak fence according to claim 1 wherein, The fence body (10) comprises: Two columns (11) are arranged at intervals in the horizontal direction, and the sides adjacent to each other of the two columns (11) are respectively provided with mounting grooves, and the side walls of the mounting grooves are provided with mounting holes; A fence plate (12) is arranged in the mounting grooves on both sides of the fence plate (12), the fence plate (12) has the mesh (121), the adjusting plate (21) and the adjusting mechanism (22) are arranged on the fence plate (12); and A fastener (13) is arranged on the column (11), the fastener (13) is threadedly connected with the mounting hole, and the end of the fastener (13) abuts against the fence plate (12).

10. An openable adjustable windbreak fence according to claim 1 wherein, The adjusting assembly (20) further comprises a plurality of movable plates (24), the movable plates (24) correspond to the adjusting plate (21) one by one, the movable plates (24) are arranged on the side of the adjusting plate (21) adjacent to the mesh (121), the movable plates (24) are rotationally connected with the adjusting plate (21), the rotation shaft of the movable plate (24) is provided with a torsion spring, and the torsion spring is configured to have a pre-tightening force for abutting the movable plate (24) against the fence body (10).