Roadway limiting air window

Abstract

The utility model provides a roadway limiting air window. The roadway limiting air window comprises an air window body, a limiting piece and a scale piece. The air window body is arranged in a first side wall of a roadway, the air window body is movably arranged along a second side wall facing the roadway, and a fixing piece is arranged on the second side wall of the roadway; the limiting piece is arranged on the side, facing the second side wall of the roadway, of the air window body and used for being connected with the fixing piece in a limiting mode so that at least part of the roadway can be shielded by at least part of the air window body. The scale pieces are arranged on the first side wall and the second side wall of the roadway correspondingly so that the effective area of the air window body can be displayed when the air window body moves to the preset position towards the second side wall of the roadway. The coal mine ventilation air window solves the problem that in the prior art, the control effect on the effective area of the coal mine ventilation air window is low.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine ventilation facilities, in particular to a tunnel limiting air window. Background Art

[0002] Currently, the adjustable windshields used in coal mine ventilation management are key facilities for ensuring the stability of underground ventilation systems. They are primarily used to adjust the air volume in ventilation tunnels to ensure ventilation safety in mines. In particular, they play an irreplaceable role in operations such as ventilation system adjustment, tunnel penetration, and air volume adjustment. Due to the confined space and harsh environment underground in coal mines, the structural design, installation method, and safety performance of the windshields require careful design and manufacturing. Currently, domestic underground windshield products generally adopt a frame structure, fixed to the wall with bolts. When adjusting the windshield, the adjusting plate is twisted with a wrench. The adjusting plate is connected to the frame via a connecting rod, thereby changing the effective area of ​​the windshield.

[0003] However, due to the connection method between the frame and the wall, the wind window requires a large torque when adjusting, making it difficult to adjust. In addition, the frame and the wall are in sliding contact, resulting in high friction, which affects the effectiveness of adjusting the wind window. The adjustment range of the wind window is usually estimated by the operator based on work experience and cannot be accurately controlled. The adjustment process also poses a major safety hazard, and the wind window is prone to blockage, causing the underground ventilation system to be cut off and causing safety accidents. Existing wind windows are relatively complicated to install and use, and lack an intuitive area display. This requires ventilation management personnel to perform tedious calculations and measurements when adjusting the air volume, affecting work efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a tunnel limiting air window to solve the problem of low control effect on the effective area of ​​the coal mine ventilation air window in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a tunnel limiting windshield is provided, including: a windshield body, which is arranged in the first side wall of the tunnel, and the windshield body is movably arranged along the second side wall facing the tunnel, and a fixing part is provided on the second side wall of the tunnel; a limiting part, which is arranged on the side of the windshield body facing the second side wall of the tunnel, for being connected with the fixing part in a limiting manner so that at least part of the windshield body blocks at least part of the tunnel; a scale part, which is respectively arranged on the first side wall and the second side wall of the tunnel, so that the effective area of ​​the windshield body is displayed when the windshield body moves to a preset position toward the second side wall of the tunnel.

[0006] Furthermore, the scale member includes: a first ruler, which is arranged between the two opposite side walls of the tunnel in the horizontal direction, and a plurality of first scale values ​​are sequentially spaced on the first ruler for obtaining the orientation of the windshield body; a second ruler, which is arranged on the other opposite side wall of the tunnel in the vertical direction, and a plurality of second scale values ​​are sequentially spaced on the second ruler for obtaining the length of the windshield body along the vertical direction.

[0007] Furthermore, a receiving groove for accommodating the windshield body is provided on the first side wall of the alley, and two mounting holes are respectively provided on the side walls of the receiving groove. The alley limiting windshield also includes: two connecting parts, which are respectively arranged in the two mounting holes and connected to the windshield body to drive the windshield body to move into the receiving groove.

[0008] Furthermore, the connecting component is an elastic member, one end of the elastic member is connected to the bottom of the mounting hole, and the other end of the elastic member is connected to the windshield body.

[0009] Furthermore, the limiting member includes two chain links, the fixing member includes two fixing posts, and any perforated pin on each chain link can be selectively buckled on the corresponding fixing post.

[0010] Furthermore, the lane limiting windshield also includes: two mounting parts, which are respectively arranged between the top and bottom of the windshield body and the inner wall of the accommodating groove and are respectively connected to the windshield body, so that the windshield body can be movably arranged in the accommodating groove.

[0011] Furthermore, mounting recesses are provided on the top and bottom of the windshield body along its extension direction, and the two mounting parts are respectively connected to the inner walls of the accommodating groove and both have protruding mounting protrusions. The mounting protrusions and the mounting recesses are cooperated and connected with each other so that the windshield body can be slidably arranged in the accommodating groove.

[0012] Furthermore, the windshield body includes a mounting frame and a mounting plate arranged on the mounting frame, the mounting plate includes a plurality of fixed sub-plates and a plurality of groups of mounting sub-plates arranged at intervals along a first direction, the plurality of fixed sub-plates and the plurality of groups of mounting sub-plates are arranged alternately in sequence, each group of mounting sub-plates includes a plurality of mounting sub-plates arranged at intervals along a second direction, and at least three mounting sub-plates located at the bottom of the mounting plate are slidably arranged.

[0013] Furthermore, sealing members are respectively provided on two opposite sides of the windshield body, so as to be closely fitted with two side walls of the accommodating groove.

[0014] Furthermore, a handle is provided on the windshield body for pulling the windshield body toward the second side wall of the tunnel.

[0015] By applying the technical solution of the utility model, a tunnel limiting windshield is provided, comprising a windshield body, a limiting member and a scale member; the windshield body is arranged in the first side wall of the tunnel, and the windshield body is movably arranged along the second side wall facing the tunnel, and a fixing member is provided on the second side wall of the tunnel; the limiting member is arranged on the side of the windshield body facing the second side wall of the tunnel, for being connected with the fixing member in a limiting manner so that at least part of the windshield body blocks at least part of the tunnel; the scale member is respectively arranged on the first side wall and the second side wall of the tunnel, so that the effective area of ​​the windshield body is displayed when the windshield body moves to a preset position toward the second side wall of the tunnel.

[0016] In this way, by setting a scale, when the operator adjusts the air window body to a preset position, the effective area of ​​the air window body can be displayed intuitively in real time without the need for additional calculations or measurements, thereby avoiding the problem of relying on the operator's experience and estimation when adjusting traditional air windows, improving the accuracy and efficiency of air window adjustment, and also facilitating data recording and analysis by ventilation management personnel, and enabling ventilation management personnel to quickly and accurately adjust the air volume in the ventilation lanes, ensuring the stability and safety of the mine ventilation system, thereby solving the problem of low control effect on the effective area of ​​coal mine ventilation windows in the existing technology. At the same time, the limit connection design of the limiter and the fixing part simplifies the adjustment process of the air window. The operator can achieve the positioning of the air window body through simple movements, avoiding the use of tools for complex adjustments, and also reducing the risk of the air window being blocked or damaged due to improper operation during the adjustment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 The figure shows the overall structure of the laneway limit window provided by an embodiment of the present utility model;

[0019] Figure 2 A side view of the assembly of the wind window body and the mounting member provided in accordance with an embodiment of the laneway limiting wind window of the present utility model is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Windshield body; 11. Mounting recess; 12. Mounting frame; 13. Mounting plate; 130. Fixed sub-plate; 131. Mounting sub-plate; 14. Handle;

[0022] 20. Lane; 21. First side wall; 210. Accommodating groove; 22. Second side wall; 23. Fixing member; 230. Fixing column; 30. Limiting member; 31. Chain link; 40. Scale member; 41. First scale; 42. Second scale; 50. Connecting member; 60. Mounting member; 61. Mounting protrusion. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to solve the problem of low control effect on the effective area of ​​coal mine ventilation windows in the prior art, the utility model provides a tunnel limiting window.

[0025] Please refer to Figure 1 and Figure 2 As shown, the utility model provides a tunnel limiting windshield, including a windshield body 10, a limiting member 30 and a scale member 40; the windshield body 10 is arranged in the first side wall 21 of the tunnel 20, and the windshield body 10 is movably arranged along the second side wall 22 facing the tunnel 20, and a fixing member 23 is provided on the second side wall 22 of the tunnel 20; the limiting member 30 is arranged on the side of the windshield body 10 facing the second side wall 22 of the tunnel 20, for being connected with the fixing member 23 in a limiting manner, so that at least part of the windshield body 10 blocks at least part of the tunnel 20; the scale member 40 is respectively arranged on the first side wall 21 and the second side wall 22 of the tunnel 20, so that the effective area of ​​the windshield body 10 is displayed when the windshield body 10 moves to a preset position toward the second side wall 22 of the tunnel 20.

[0026] By applying the technical solution of the present invention, by setting a scale member 40, when the operator adjusts the wind window body 10 to move to the preset position, the effective area of ​​the wind window body 10 can be displayed intuitively in real time without the need for additional calculations or measurements, thereby avoiding the problem of relying on the operator's experience and estimation when adjusting the traditional wind window, improving the accuracy and efficiency of the wind window adjustment, and also facilitating data recording and analysis by ventilation management personnel, and enabling ventilation management personnel to quickly and accurately adjust the air volume of the ventilation tunnel 20, ensuring the stability and safety of the mine ventilation system, thereby solving the problem of low control effect on the effective area of ​​the coal mine ventilation window in the prior art. At the same time, the limiting connection design of the limiting member 30 and the fixing member 23 simplifies the adjustment process of the wind window. The operator can achieve the positioning of the wind window body 10 through simple movements, avoiding the situation of using tools for complex adjustments, and also reducing the risk of the wind window being blocked or damaged due to improper operation during the adjustment process.

[0027] Specifically, the scale member 40 includes a first scale 41 and a second scale 42; the first scale 41 is horizontally disposed between two opposite side walls of the tunnel 20, and a plurality of first scale values ​​are sequentially spaced on the first scale 41 for obtaining the orientation of the windshield body 10; the second scale 42 is vertically disposed on the other opposite side wall of the tunnel 20, and a plurality of second scale values ​​are sequentially spaced on the second scale 42 for obtaining the vertical length of the windshield body 10. The above arrangement, through the combination of the first scale 41 and the second scale 42, can simultaneously accurately measure the opening of the windshield body 10 in both the horizontal and vertical directions, thereby directly reading the horizontal and vertical lengths of the windshield body 10 without the need for complex calculations, thereby improving the intuitiveness and convenience of operation, thereby achieving multi-dimensional control of the effective area of ​​the windshield, thereby ensuring more accurate air volume adjustment and avoiding over-ventilation or under-ventilation.

[0028] like Figure 1 As shown, a receiving slot 210 for accommodating the window body 10 is provided on the first sidewall 21 of the lane 20. Two mounting holes are provided on the sidewalls of the receiving slot 210. The lane limiter window further includes two connecting components 50, which are disposed in the two mounting holes and connected to the window body 10, respectively, to drive the window body 10 into the receiving slot 210. Through the above arrangement, the design of the receiving slot 210 allows the window body 10 to be completely hidden within the sidewall of the lane 20 when not in use, not only saving space in the lane 20 but also improving the neatness and aesthetics of the lane 20. At the same time, this ensures the stability and safety of the window body 10 during movement toward the second sidewall 22 of the lane 20.

[0029] Optionally, the connecting component 50 is an elastic member, one end of which is connected to the bottom of the mounting hole, and the other end of the elastic member is connected to the window body 10. In this embodiment, the elastic member is a tension spring. With the above arrangement, the elastic member is compressed or stretched when the window body 10 moves. When the external force is removed, the elastic member can provide a restoring force, so that the window body 10 automatically returns to the initial position or the preset position, so as to ensure the normal operation of the ventilation system in the event of no operation or emergency, and avoid ventilation failure caused by improper window position. And when the window body 10 is adjusted to move toward the second side wall 22 of the alley 20, the stable movement of the window body 10 can be ensured. At the same time, the elastic member provides a buffering effect between the window body 10 and the wall, reducing the impact and vibration that may be generated when the window body 10 moves, protecting the window body 10 and the wall, extending the service life of the window, and also reducing noise.

[0030] It should be noted that, in this embodiment, the connecting component 50 can be a pull rod slide rail, a chain, or other effective transmission devices, which can accurately control the movement of the windshield body 10, avoid the windshield from slipping or getting stuck during the adjustment process, and reduce operational risks.

[0031] Specifically, the limiting member 30 includes two chain links 31, and the fixing member 23 includes two fixing posts 230. Any perforated pin on each chain link 31 can be selectively fastened to the corresponding fixing post 230. Through the above arrangement, the combined design of the chain links 31 and the fixing posts 230 provides multiple limiting points. The operator can precisely control the opening of the windshield body 10 by selecting different fastening positions of the perforated pins and the fixing posts 230 according to ventilation needs, thereby achieving precise adjustment of the ventilation volume of the tunnel 20. In addition, because the fastening and release operations of the perforated pins on the chain links 31 and the fixing posts 230 are simple and fast, the limiting and unlocking of the windshield body 10 can be completed in a short time, which improves the response speed of the ventilation system adjustment, which is particularly important for responding to sudden changes in ventilation needs in mines.

[0032] In this embodiment, the chain link 31 and the fixing column 230 are both made of wear-resistant materials, so that wear during frequent adjustments can be reduced, the service life of the limit member 30 is extended, and the maintenance and replacement costs are reduced.

[0033] like Figure 2 As shown, the lane limiter window also includes two mounting members 60, which are respectively disposed between the top and bottom of the window body 10 and the inner wall of the receiving groove 210 and are respectively connected to the window body 10 so that the window body 10 can be movably disposed in the receiving groove 210. With the above arrangement, the two mounting members 60 can evenly support the window body 10, ensuring its smooth movement in the receiving groove 210 and avoiding tilting or jamming that may occur during movement. This makes the positioning of the window body 10 more precise and improves the accuracy of ventilation volume adjustment. It also enhances the structural stability between the window body 10 and the receiving groove 210. Even if the environment in the lane 20 changes or is subjected to external impact, the window body 10 can remain stable, reducing the risk of displacement or damage.

[0034] Specifically, mounting recesses 11 are provided on the top and bottom of the windshield body 10 along their respective extension directions. Two mounting members 60 are respectively connected to the inner walls of the receiving slot 210 and each has a protruding mounting protrusion 61. The mounting protrusion 61 cooperates with the mounting recesses 11 to allow the windshield body 10 to be slidably positioned within the receiving slot 210. Through this arrangement, the cooperation between the mounting recesses 11 and the mounting protrusions 61 provides a smooth sliding guide for the windshield body 10, ensuring smooth adjustment of the windshield body 10, reducing friction and resistance, making the adjustment operation smoother, and improving the accuracy of adjusting the windshield effective area. Furthermore, the connection between the mounting members 60 and the windshield body 10 facilitates disassembly and assembly. When the windshield body 10 needs to be replaced or maintained, the operation can be carried out quickly, reducing downtime and maintenance costs, while also minimizing the impact on the normal operation of the ventilation system.

[0035] It should be noted that, in this embodiment, the mounting member 60 may also be an effective sliding structure such as a slide rail, and the windshield body 10 has a mating portion that is mated with the mounting member 60 so as to be slidably disposed in the receiving groove 210 .

[0036] Specifically, the windshield body 10 includes a mounting frame 12 and a mounting plate 13 mounted on the mounting frame 12. The mounting plate 13 includes a plurality of fixed sub-plates 130 spaced apart along a first direction and a plurality of groups of mounting sub-plates 131. The plurality of fixed sub-plates 130 and the plurality of groups of mounting sub-plates 131 are arranged alternately in sequence. Each group of mounting sub-plates 131 includes a plurality of mounting sub-plates 131 spaced apart along a second direction. At least three mounting sub-plates 131 located at the bottom of the mounting plate 13 are slidably mounted. With this arrangement, a slide groove is provided at the bottom of the mounting frame 12, and the at least three mounting sub-plates 131 are slidably mounted within the slide groove. The slidable mounting sub-plates 131 allow the operator to selectively adjust the effective ventilation area of ​​the windshield body 10 to meet varying ventilation requirements, achieving precise control of ventilation volume and enhancing the flexibility and adaptability of ventilation management. The slidable mounting sub-plates 131 at the bottom allow the operator to adjust the ventilation area manually without having to climb or use tools, reducing operational difficulty and improving convenience and efficiency.

[0037] In this embodiment, seals are provided on opposite sides of the windshield body 10 to securely fit the side walls of the receiving groove 210. The seals are made of silicone rubber. This significantly enhances the seal between the windshield body 10 and the side walls of the roadway 20, reducing air leakage when the windshield is open or closed, ensuring precise control of ventilation volume, and improving the efficiency of the ventilation system. Furthermore, the close fit of the seals against the side walls also stabilizes the position of the windshield body 10 to a certain extent, preventing it from moving under wind pressure and ensuring the stability of the windshield after adjustment.

[0038] In this embodiment, the windshield body 10 is provided with a handle 14 for pulling the windshield body 10 toward the second sidewall 22 of the roadway 20. This allows the operator to more conveniently control the movement of the windshield body 10, requiring no additional tools or equipment; adjustment of the windshield can be accomplished solely by human effort, improving operational convenience and efficiency. Furthermore, the movement distance of the windshield body 10 can be more precisely controlled. Combined with the use of the graduated member 40, precise adjustment of the ventilation volume can be achieved, improving the accuracy of ventilation management.

[0039] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0040] The alley limiting windshield includes a windshield body 10, a limiting member 30 and a scale member 40; the windshield body 10 is arranged in the first side wall 21 of the alley 20, and the windshield body 10 is movably arranged along the second side wall 22 facing the alley 20, and a fixing member 23 is provided on the second side wall 22 of the alley 20; the limiting member 30 is arranged on the side of the windshield body 10 facing the second side wall 22 of the alley 20, for being connected with the fixing member 23 in a limiting manner so that at least part of the windshield body 10 blocks at least part of the alley 20; the scale member 40 is respectively arranged on the first side wall 21 and the second side wall 22 of the alley 20, so that the effective area of ​​the windshield body 10 is displayed when the windshield body 10 moves to a preset position toward the second side wall 22 of the alley 20. In this way, by setting the scale member 40, when the operator adjusts the wind window body 10 to move to the preset position, the effective area of ​​the wind window body 10 can be displayed intuitively in real time without the need for additional calculations or measurements, thereby avoiding the problem of relying on the operator's experience and estimation when adjusting the traditional wind window, improving the accuracy and efficiency of the wind window adjustment, and also facilitating the ventilation management personnel to record and analyze data, and enabling the ventilation management personnel to quickly and accurately adjust the air volume of the ventilation tunnel 20, ensuring the stability and safety of the mine ventilation system, thereby solving the problem of low control effect on the effective area of ​​the coal mine ventilation window in the prior art. At the same time, the limiting connection design of the limiting member 30 and the fixing member 23 simplifies the adjustment process of the wind window. The operator can achieve the positioning of the wind window body 10 through simple movements, avoiding the situation of using tools for complex adjustments, and also reducing the risk of the wind window being blocked or damaged due to improper operation during the adjustment process.

[0041] 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, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0043] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention 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. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0044] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. 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 figures. For example, if the device in the 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.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tunnel limiting windshield, characterized in that: include: A windshield body (10) is disposed in a first side wall (21) of a tunnel (20), the windshield body (10) being movably disposed along a second side wall (22) facing the tunnel (20), and a fixing member (23) is provided on the second side wall (22) of the tunnel (20); a limiting member (30) disposed on a side of the windshield body (10) facing the second side wall (22) of the lane (20) for limiting connection with the fixing member (23) so that at least a portion of the windshield body (10) blocks at least a portion of the lane (20); Scale members (40) are respectively arranged on the first side wall (21) and the second side wall (22) of the lane (20) so as to display the effective area of ​​the wind window body (10) when the wind window body (10) moves toward the second side wall (22) of the lane (20) to a preset position.

2. The laneway limiting windshield according to claim 1, characterized in that: The scale member (40) comprises: A first scale (41) is arranged between two opposite side walls of the tunnel (20) in a horizontal direction, and a plurality of first scale values ​​are sequentially spaced apart on the first scale (41) for obtaining the orientation of the windshield body (10); A second scale (42) is arranged on the other side wall of the tunnel (20) in the vertical direction, and a plurality of second scale values ​​are sequentially spaced apart on the second scale (42) for obtaining the length of the windshield body (10) in the vertical direction.

3. The laneway limiting windshield according to claim 1, characterized in that: A first side wall (21) of the lane (20) is provided with a receiving groove (210) for receiving the windshield body (10), and two mounting holes are respectively provided on the side walls of the receiving groove (210). The lane limit windshield further comprises: Two connecting components (50) are respectively arranged in the two mounting holes and connected to the windshield body (10) to drive the windshield body (10) to move into the accommodating groove (210).

4. The laneway limiting windshield according to claim 3, characterized in that: The connecting component (50) is an elastic component, one end of which is connected to the bottom of the mounting hole, and the other end of which is connected to the windshield body (10).

5. The laneway limiting windshield according to claim 1, characterized in that: The limiting member (30) includes two chain links (31), and the fixing member (23) includes two fixing posts (230). Any perforated pin on each chain link (31) can be selectively buckled on the corresponding fixing post (230).

6. The laneway limiting windshield according to claim 3, characterized in that: The lane limit window also includes: Two mounting members (60) are respectively arranged between the top and bottom of the windshield body (10) and the inner wall of the receiving groove (210) and are respectively connected to the windshield body (10) so that the windshield body (10) can be movably arranged in the receiving groove (210).

7. The laneway limiting windshield according to claim 6, characterized in that: The top and bottom of the windshield body (10) are respectively provided with mounting recesses (11) along the extension direction thereof. The two mounting members (60) are respectively connected to the inner wall of the receiving groove (210) and each has a protruding mounting convex portion (61). The mounting convex portion (61) and the mounting recesses (11) are mutually matched and connected so that the windshield body (10) can be slidably arranged in the receiving groove (210).

8. The laneway limiting windshield according to claim 1, characterized in that: The windshield body (10) comprises a mounting frame (12) and a mounting plate (13) arranged on the mounting frame (12); the mounting plate (13) comprises a plurality of fixed sub-plates (130) and a plurality of groups of mounting sub-plates (131) arranged at intervals along a first direction; the plurality of fixed sub-plates (130) and the plurality of groups of mounting sub-plates (131) are arranged alternately in sequence; each group of the mounting sub-plates (131) comprises a plurality of mounting sub-plates (131) arranged at intervals along a second direction; and at least three of the mounting sub-plates (131) located at the bottom of the mounting plate (13) are slidably arranged.

9. The laneway limiting windshield according to claim 3, characterized in that: Sealing members are respectively provided on opposite sides of the windshield body (10) for respectively tightly fitting with the two side walls of the accommodating groove (210).

10. The tunnel limiting windshield according to claim 1, characterized in that: The windshield body (10) is provided with a handle (14) for pulling the windshield body (10) toward the second side wall (22) of the tunnel (20).

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