Wind barrier

Abstract

The utility model provides a wind barrier which comprises a supporting frame, a wind barrier body and a wind barrier body, the supporting frame is provided with two opposite ends, one end of the supporting frame abuts against a top plate at the corner of a coal face, the other end of the supporting frame abuts against a bottom plate at the corner of the coal face, and the supporting frame is provided with a first height adjusting mechanism so as to adjust the height of the supporting frame; the hanging rod is movably arranged on the supporting frame in the height direction, and an included angle is formed between the extending direction of the hanging rod and the extending direction of the supporting frame; the second height adjusting mechanism is arranged between the supporting frame and the hanging rod, and the second height adjusting mechanism can adjust the height of the hanging rod relative to the supporting frame; the air duct cloth is provided with a mounting edge and a free edge which are oppositely arranged in the height direction, and the mounting edge is arranged on the hanging rod. According to the technical scheme, the problems that in the prior art, a wind barrier is unstable in installation and inconvenient to operate can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a wind barrier. Background Art

[0002] In the coal mining face of a coal mine, the upper and lower corners are special areas. This is not only the intersection of air leakage in the goaf, but also the gathering place of a large amount of gas diffused from the fresh coal wall. In addition, when the wind flow passes near the upper corner, the wind speed decreases and vortex phenomenon is formed, making it difficult for these gases to be carried away by the wind flow, which makes it easy for gas accumulation to form here, causing safety hazards.

[0003] In the prior art, temporary wind barriers are usually set up at the upper and lower ends of the working surface to change the direction of the wind flow, guide part of the wind flow through the vortex area of ​​the upper corner, and thus take away the gas in the upper corner. The existing wind barriers usually include a telescopic rod and a soft wind tube cloth hung on the telescopic rod. One end of the telescopic rod is fixed to the side wall at the upper end, and the other end can be extended to adjust the overall covering area of ​​the wind barrier. However, the rock walls at the upper and lower corners of the coal mine tunnel are usually loose, which will increase the risk of roof collapse at the end of the tunnel during the installation and removal of the wind barrier. After the installation is completed, the installation position and covering area of ​​the wind barrier need to be adjusted manually to climb up and adjust the length and position of the telescopic rod, which is inconvenient and inefficient. Utility Model Content

[0004] The utility model provides a wind barrier to solve the problems of unstable installation and inconvenient operation of the wind barrier in the prior art.

[0005] The utility model provides a wind barrier, which comprises: a support frame having two ends relatively arranged, one end of the support frame abutting against a top plate at a corner of a coal mining working face, and the other end of the support frame abutting against a bottom plate at a corner of the coal mining working face, the support frame having a first height adjustment mechanism to adjust the height of the support frame; a hanging rod movably arranged on the support frame along a height direction, an angle being formed between an extension direction of the hanging rod and an extension direction of the support frame; a second height adjustment mechanism arranged between the support frame and the hanging rod, the second height adjustment mechanism being able to adjust the height of the hanging rod relative to the support frame; and a wind tube cloth having a mounting edge and a free edge relatively arranged along a height direction, the mounting edge being arranged on the hanging rod.

[0006] Furthermore, the support frame includes two support rods arranged in parallel and at intervals, the support rod includes a sleeve, a first movable rod and a second movable rod, the first movable rod and the second movable rod are respectively movably inserted at both ends of the sleeve, the end of the first movable rod away from the second movable rod is used to abut against the top plate, and the end of the second movable rod away from the first movable rod is used to abut against the bottom plate, the first movable rod and the second movable rod can move away from or approach each other through a first height adjustment mechanism, and the hanging rod is connected to the first movable rods of the two support rods through the second height adjustment mechanism.

[0007] Furthermore, the second height adjustment mechanism includes: a pulley, a support plate is provided at one end of the first moving rod away from the second moving rod, and the pulley is provided on the support plate; a pull rope, the pull rope is provided between the hanging rod and the support rod, one end of the pull rope is fixedly connected to the hanging rod, and the other end of the pull rope is movably provided on the support rod, and the pull rope and the pulley are slidably cooperated to adjust the height of the hanging rod relative to the support frame.

[0008] Furthermore, a first piston block is provided at one end of the first moving rod located in the sleeve, and a second piston block is provided at one end of the second moving rod located in the sleeve. The first piston block, the second piston block and the side wall of the sleeve cooperate to form an air cavity. An air valve is provided on the side wall of the air cavity. The air valve can inflate or discharge the gas in the air cavity to drive the first piston block and the second piston block to move away from or closer to each other.

[0009] Furthermore, both ends of the sleeve are provided with end plates, and the end plates are provided with through holes. The first moving rod and the second moving rod are respectively penetrated in the corresponding through holes, and the diameter of the through holes is smaller than the diameter of the first piston block and the second piston block.

[0010] Furthermore, a cable is arranged between the two support rods, one end of the cable is connected to one end of one of the support rods close to the top plate, and the other end of the cable is connected to the other end of the other support rod close to the bottom plate. Two cables are arranged crosswise on the two support rods.

[0011] Furthermore, the installation edge of the air duct cloth is provided with a plurality of hanging rings, which are spaced apart along the extension direction of the installation edge. The air duct cloth is arranged on the hanging rod through the plurality of hanging rings, and the hanging rings can move relative to the hanging rod.

[0012] Furthermore, stoppers are provided at both ends of the hanging rod to limit the displacement of the hanging ring on the hanging rod.

[0013] Furthermore, the hanging rod includes an outer tube and two inner tubes, the two inner tubes are respectively inserted at both ends of the outer tube, and the stoppers are arranged on the inner tubes. The inner tubes can move relative to the outer tube along the extension direction of the outer tube to adjust the length of the hanging rod.

[0014] Furthermore, a threaded structure is provided between the outer wall of the inner tube and the inner wall of the outer tube, and the inner tube and the outer tube are threadably matched via the threaded structure.

[0015] The technical solution of the utility model is applied, and a technical solution is provided by setting a support frame and a hanging rod to jointly unfold and support the wind tube cloth. Compared with the technical solution of setting a telescopic rod on the side wall of the end in the traditional technical solution, the two relatively arranged ends of the support frame are supported between the top plate and the bottom plate at the corner of the coal mining working face, which can effectively improve the stability of the support for the hanging rod and the wind tube cloth, and reduce the risk of the end head being topped after the support rod is installed; and by setting a first height adjustment mechanism and a second height adjustment mechanism, it is convenient to install and adjust the wind barrier according to tunnels of different heights or cross-sectional shapes. During the installation process, the height of the support frame can be adjusted by the first height adjustment mechanism, so that the two ends of the support frame are both abutted against the top plate and the bottom plate of the tunnel, thereby improving the supporting performance. After the support is erected, the hanging rod is moved along the height direction of the support frame by the second height adjustment mechanism, and then the wind tube cloth is unfolded to complete the installation, thereby improving the convenience of operation. When it is necessary to adjust the covering area of ​​the wind barrier, it can also be operated by the second height adjustment mechanism, without the need for staff to climb up to make adjustments, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a wind barrier provided by the utility model from one viewing angle is shown;

[0018] Figure 2 Another perspective structural schematic diagram of the wind barrier provided by the utility model is shown;

[0019] Figure 3 Shows Figure 2 A partial enlarged view of the middle A;

[0020] Figure 4 A schematic diagram of the structure of the support rod and the hanging rod provided by the utility model is shown;

[0021] Figure 5 A cross-sectional view of the support rod provided by the utility model is shown;

[0022] Figure 6 Shows Figure 4 A partial enlarged view of point B in the middle.

[0023] The above drawings include the following reference numerals:

[0024] 10. Support frame;

[0025] 11. Support rod; 111. Sleeve; 112. First moving rod; 113. Second moving rod; 114. Support plate; 115. First piston block; 116. Second piston block; 117. Air cavity; 118. Air valve; 119. End plate;

[0026] 12. Cable;

[0027] 20. Hanging rod;

[0028] 21. stopper; 22. outer tube; 23. inner tube;

[0029] 30. A second height adjustment mechanism;

[0030] 31. Pulley; 32. Pull rope;

[0031] 40. Air duct cloth;

[0032] 41. Hanging ring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figures 1 to 3 As shown, an embodiment of the utility model provides a wind barrier, which includes a support frame 10, a hanging rod 20, a second height adjustment mechanism 30 and a wind tube cloth 40. The support frame 10 has two opposite ends, one end of the support frame 10 abuts against the top plate at the corner of the coal mining working face, and the other end of the support frame 10 abuts against the bottom plate at the corner of the coal mining working face. The support frame 10 has a first height adjustment mechanism to adjust the height of the support frame 10. The hanging rod 20 is movably arranged on the support frame 10 along the height direction, and the extension direction of the hanging rod 20 and the extension direction of the support frame 10 have an angle. The second height adjustment mechanism 30 is arranged between the support frame 10 and the hanging rod 20, and the second height adjustment mechanism 30 can adjust the height of the hanging rod 20 relative to the support frame 10. The wind tube cloth 40 has a mounting edge and a free edge that are relatively arranged along the height direction, and the mounting edge is arranged on the hanging rod 20.

[0035] By applying the technical solution of the utility model, a technical solution is provided in which a support frame 10 and a hanging rod 20 are jointly unfolded and support the wind tube cloth 40. Compared with the technical solution in which a telescopic rod is provided on the side wall of the end in the traditional technical solution, the two opposite ends of the support frame 10 are supported between the top plate and the bottom plate at the corner of the coal mining working face, which can effectively improve the stability of the support for the hanging rod 20 and the wind tube cloth 40, and reduce the risk of the end head falling due to the support rod after installation; and by providing a first height adjustment mechanism and a second height adjustment mechanism 30, it is convenient for the wind barrier to be adjusted according to the different heights or cross-sectional shapes of the lanes. The road is installed and adjusted. During the installation process, the height of the support frame 10 can be adjusted by the first height adjustment mechanism, so that both ends of the support frame 10 are in contact with the top plate and the bottom plate of the roadway, thereby improving the supporting performance. After the support frame 10 is erected, the hanging rod 20 is moved along the height direction of the support frame through the second height adjustment mechanism 30, and then the wind tube cloth 40 is unfolded to complete the installation, thereby improving the convenience of operation. When it is necessary to adjust the covering area of ​​the wind barrier, it can also be operated through the second height adjustment mechanism 30, without the need for staff to climb up to make adjustments, thereby improving work efficiency.

[0036] Specifically in the present application, the support frame 10 includes two support rods 11 arranged in parallel and at intervals, the support rod 11 includes a sleeve 111, a first movable rod 112 and a second movable rod 113, the first movable rod 112 and the second movable rod 113 are respectively movably inserted at the two ends of the sleeve 111, the end of the first movable rod 112 away from the second movable rod 113 is used to abut against the top plate, and the end of the second movable rod 113 away from the first movable rod 112 is used to abut against the bottom plate, the first movable rod 112 and the second movable rod 113 can move away from or approach each other through a first height adjustment mechanism, and the hanging rod 20 is connected to the first movable rod 112 of the two support rods 11 through a second height adjustment mechanism 30. Through the above-mentioned arrangement, when the cross-section of the tunnel is of an irregular shape, the heights of the two support rods 11 are adjusted by respectively adjusting the displacement of the first movable rod 112 and the second movable rod 113 relative to the sleeve 111, so as to improve the adaptability of the support frame 10 and ensure the supporting performance of the support frame 10, and by respectively adjusting the second height adjustment mechanism 30 between the hanging rod 20 and the two support rods 11, the angle between the extension direction of the hanging rod 20 and the extension direction of the support frame 10 can be adjusted, so that the wind tube cloth 40 can adapt to the tunnel with an irregular cross-section, and prevent a large gap from appearing between the edge of the wind tube cloth 40 and the top plate of the tunnel, thereby ensuring the wind barrier's wind diversion effect.

[0037] Reference Figure 4 and Figure 6As shown, the second height adjustment mechanism 30 includes a pulley 31 and a pull rope 32. Among them, a support plate 114 is provided at one end of the first moving rod 112 away from the second moving rod 113, the pulley 31 is provided on the support plate 114, the pull rope 32 is provided between the hanging rod 20 and the support rod 11, one end of the pull rope 32 is fixedly connected to the hanging rod 20, and the other end of the pull rope 32 is movably provided on the support rod 11, and the pull rope 32 and the pulley 31 are slidably matched to adjust the height of the hanging rod 20 relative to the support frame 10. Through the above arrangement, after the support frame 10 is set up in the lane, the distance between the hanging rod 20 and the support plate 114 provided on the first moving rod 112 can be adjusted by the pull rope 32, that is, the distance between the wind tube cloth 40 and the top plate can be adjusted, and after the adjustment is completed, the pull rope 32 is tied to the support rod 11 to complete the fixing of the pull rope 32, thereby improving the operation efficiency. In the present application, by setting a support plate 114 at the end of the first moving rod 112 away from the second moving rod 113, the contact area between the first moving rod 112 and the top plate can be increased, thereby improving the stability of the support frame 10. Specifically, a support plate 114 can also be set at the end of the second moving rod 113 away from the first moving rod 112.

[0038] like Figure 5 As shown, a first piston block 115 is provided at one end of the first moving rod 112 located in the sleeve 111, and a second piston block 116 is provided at one end of the second moving rod 113 located in the sleeve 111. The first piston block 115, the second piston block 116 and the side wall of the sleeve 111 cooperate to form an air cavity 117. An air valve 118 is provided on the side wall of the air cavity 117. The air valve 118 can inflate or discharge the gas in the air cavity 117 to drive the first piston block 115 and the second piston block 116 to move away from or approach each other. Through the above-mentioned arrangement, when it is necessary to erect the support frame 10, air can be inflated into the air cavity 117 through the air valve 118, and the first piston block 115 and the second piston block 116 can be pushed away from each other by the air pressure to increase the overall length of the support rod 11; when it is necessary to plug in the support frame 10, the gas in the air cavity 117 can be discharged through the air valve 118 to reduce the pressure in the air cavity 117, and the first moving rod 112 and the second moving rod 113 can be moved closer to each other under the action of gravity to reduce the overall length of the support rod 11. By setting the air pressure to push the first moving rod 112 and the second moving rod 113, the supporting performance of the first moving rod 112 and the second moving rod 113 can be brought into play, so that the first moving rod 112 and the second moving rod 113 can produce an appropriate amount of displacement, thereby preventing the support rod 11 from causing damage to the top plate and the bottom plate due to manual adjustment, thereby reducing the risk of roof collapse.

[0039] Furthermore, both ends of the sleeve 111 are provided with end plates 119, and through holes are provided on the end plates 119. The first moving rod 112 and the second moving rod 113 are respectively provided in the corresponding through holes, and the diameter of the through holes is smaller than the diameter of the first piston block 115 and the second piston block 116. Through the above arrangement, the end plates 119 can limit the movement of the first moving rod 112 and the second moving rod 113, prevent the first moving rod 112 and the second moving rod 113 from excessive displacement, and improve the performance of the support rod 11.

[0040] Furthermore, a cable 12 is provided between the two support rods 11, one end of the cable 12 is connected to one end of one of the support rods 11 close to the top plate, and the other end of the cable 12 is connected to one end of the other support rod 11 close to the bottom plate, and two cables 12 are provided, and the two cables 12 are cross-arranged on the two support rods 11. Through the above arrangement, the two support rods 11 can be connected, the overall structural performance of the support frame 10 is improved, and the supporting strength of the support frame 10 is further improved, and the cross-arrangement of the two cables 12 can also provide a certain stop for the wind tube cloth 40 to prevent the wind tube cloth 40 from being lifted up when subjected to strong winds.

[0041] Specifically in the present application, the installation edge of the wind tube cloth 40 is provided with a plurality of hanging rings 41, and the plurality of hanging rings 41 are spaced apart along the extension direction of the installation edge. The wind tube cloth 40 is arranged on the hanging rod 20 through the plurality of hanging rings 41, and the hanging rings 41 can move relative to the hanging rod 20. Through the above arrangement, the wind tube cloth 40 can be pulled in the horizontal direction to thereby realize the shielding position of the wind tube cloth 40 in the horizontal direction, thereby improving the overall use effect of the wind barrier.

[0042] Reference Figure 3 As shown, blocks 21 are provided at both ends of the hanging rod 20 to limit the displacement of the hanging ring 41 on the hanging rod 20. Through the above arrangement, the blocks 21 can limit the hanging ring 41 to prevent the hanging ring 41 from falling off the hanging rod 20 due to gravity when the hanging rod 20 and the support rod 11 are not perpendicular to each other, thereby ensuring the stability of the installation of the wind tube cloth 40.

[0043] In a specific embodiment of the present application, the hanging rod 20 includes an outer tube 22 and two inner tubes 23, the two inner tubes 23 are respectively inserted at both ends of the outer tube 22, the stopper 21 is arranged on the inner tube 23, and the inner tube 23 can move relative to the outer tube 22 along the extension direction of the outer tube 22 to adjust the length of the hanging rod 20. Through the above arrangement, by adjusting the distance that the two inner tubes 23 extend out of the outer tube 22, the length of the hanging rod 20 can be adjusted, thereby enabling the wind barrier to adapt to the width of different lanes, thereby improving the applicability of the wind barrier.

[0044] Furthermore, a threaded structure is provided between the outer wall of the inner tube 23 and the inner wall of the outer tube 22, and the inner tube 23 and the outer tube 22 are threadedly matched through the threaded structure. Through the above arrangement, when it is necessary to adjust the distance of the inner tube 23 extending out of the outer tube 22, the adjustment can be achieved by rotating the inner tube 23, which is convenient to operate.

[0045] The application of the technical solution of this application has the following advantages:

[0046] 1. By providing the support frame 10 and the hanging rod 20, the stability of the wind barrier installation can be improved, and the support structure does not need to be fixed on the side wall of the tunnel, which reduces the impact of the wind barrier on the tunnel surrounding rock during installation and removal, and improves the safety of underground operations;

[0047] 2. By setting the first height adjustment structure to adjust the height of the support frame 10, and the second height adjustment mechanism 30 to adjust the height of the hanging rod 20, it is convenient for workers to install the wind barrier and adjust the shielding area of ​​the wind barrier, thereby improving the convenience of construction;

[0048] 3. By providing a first height adjustment mechanism and a second height adjustment mechanism 30 on the two support rods 11 and the hanging rod 20, and configuring the hanging rod 20 to be in the form of an outer tube 22 and two inner tubes 23, the wind tube cloth 40 can adapt to lanes with different cross-sectional shapes, thereby improving the scope of application of the wind barrier.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0051] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0054] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wind barrier, characterized in that: The wind barrier comprises: The support frame (10) has two oppositely arranged ends, one end of the support frame (10) abuts against the top plate at the corner of the coal mining working face, and the other end of the support frame (10) abuts against the bottom plate at the corner of the coal mining working face, and the support frame (10) has a first height adjustment mechanism to adjust the height of the support frame (10); A hanging rod (20) is movably arranged on the support frame (10) along a height direction, and an angle is formed between an extension direction of the hanging rod (20) and an extension direction of the support frame (10); A second height adjustment mechanism (30) is arranged between the support frame (10) and the hanging rod (20), and the second height adjustment mechanism (30) is capable of adjusting the height of the hanging rod (20) relative to the support frame (10); The air duct cloth (40) has a mounting edge and a free edge which are arranged opposite to each other in the height direction, and the mounting edge is arranged on the hanging rod (20).

2. The wind barrier according to claim 1, characterized in that: The support frame (10) comprises two support rods (11) arranged in parallel and at intervals, the support rod (11) comprises a sleeve (111), a first movable rod (112) and a second movable rod (113), the first movable rod (112) and the second movable rod (113) are respectively movably inserted at two ends of the sleeve (111), one end of the first movable rod (112) away from the second movable rod (113) is used to abut against the top plate, and one end of the second movable rod (113) away from the first movable rod (112) is used to abut against the bottom plate, the first movable rod (112) and the second movable rod (113) can be moved away from or closer to each other through the first height adjustment mechanism, and the hanging rod (20) is connected to the first movable rods (112) of the two support rods (11) through the second height adjustment mechanism (30).

3. The wind barrier according to claim 2, characterized in that: The second height adjustment mechanism (30) comprises: A pulley (31), wherein a support plate (114) is provided at one end of the first moving rod (112) away from the second moving rod (113), and the pulley (31) is provided on the support plate (114); A pull rope (32), wherein the pull rope (32) is arranged between the hanging rod (20) and the supporting rod (11), one end of the pull rope (32) is fixedly connected to the hanging rod (20), and the other end of the pull rope (32) is movably arranged on the supporting rod (11), and the pull rope (32) is slidably matched with the pulley (31) to adjust the height of the hanging rod (20) relative to the supporting frame (10).

4. The wind barrier according to claim 2, characterized in that: A first piston block (115) is provided at one end of the first moving rod (112) located in the sleeve (111), and a second piston block (116) is provided at one end of the second moving rod (113) located in the sleeve (111). The first piston block (115), the second piston block (116) and the side wall of the sleeve (111) cooperate to form an air cavity (117). An air valve (118) is provided on the side wall of the air cavity (117). The air valve (118) can inflate or discharge the gas in the air cavity (117) to drive the first piston block (115) and the second piston block (116) to move away from or approach each other.

5. The wind barrier according to claim 4, characterized in that: The sleeve (111) is provided with end plates (119) at both ends thereof, and the end plates (119) are provided with through holes, and the first moving rod (112) and the second moving rod (113) are respectively inserted into the corresponding through holes, and the diameter of the through holes is smaller than the diameter of the first piston block (115) and the second piston block (116).

6. The wind barrier according to claim 2, characterized in that: A cable (12) is arranged between the two support rods (11), one end of the cable (12) is connected to an end of one of the support rods (11) close to the top plate, and the other end of the cable (12) is connected to an end of the other support rod (11) close to the bottom plate. Two cables (12) are arranged, and the two cables (12) are cross-arranged on the two support rods (11).

7. The wind barrier according to claim 1, characterized in that: The installation edge of the air duct cloth (40) is provided with a plurality of hanging rings (41), and the plurality of hanging rings (41) are distributed at intervals along the extension direction of the installation edge. The air duct cloth (40) is arranged on the hanging rod (20) through the plurality of hanging rings (41), and the hanging rings (41) can move relative to the hanging rod (20).

8. The wind barrier according to claim 7, characterized in that: Stoppers (21) are provided at both ends of the hanging rod (20) to limit the displacement of the hanging ring (41) on the hanging rod (20).

9. The wind barrier according to claim 8, characterized in that: The hanging rod (20) comprises an outer tube (22) and two inner tubes (23), the two inner tubes (23) are respectively inserted at two ends of the outer tube (22), the stopper (21) is arranged on the inner tube (23), and the inner tube (23) can move relative to the outer tube (22) along the extension direction of the outer tube (22) to adjust the length of the hanging rod (20).

10. The wind barrier according to claim 9, characterized in that: A threaded structure is provided between the outer wall of the inner tube (23) and the inner wall of the outer tube (22), and the inner tube (23) and the outer tube (22) are threadedly matched via the threaded structure.

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