Tunnel combined air valve with fireproof function

Abstract

The application relates to the technical field of tunnel air valves, and discloses a tunnel combined air valve with a fireproof function. A first motor assembly is fixedly connected to the top of a wind box. Ventilation pipelines are arranged on the surface of the wind box and close to the top. An air valve body is movably sleeved in the wind box and close to the bottom. First telescopic assemblies are arranged on the two sides of the wind box and in the wind box. Second motor assemblies are arranged on the two sides of the top of the air valve body. The air valve body is lifted in the air valve body through the wind direction adjusting assembly, the first air outlet hole and the second air outlet hole are changed, the horizontal air outlet pipe at the bottom of the wind direction adjusting assembly and the main air outlet pipe are used when the wind direction is changed, and the problem of blade vibration or frame deformation leading to sealing failure is avoided.

Description

Technical Field

[0001] This invention relates to the field of tunnel ventilation valve technology, and more specifically to a fire-resistant tunnel combined ventilation valve. Background Technology

[0002] The tunnel modular air valve is a modular air volume regulating device used in tunnel ventilation systems. It is usually composed of multiple independently controllable air valve units. By adjusting the blade angle through electric or manual drive, it can achieve precise control of airflow direction, wind speed and air volume in the tunnel. It has the characteristics of fire resistance, moisture resistance and corrosion resistance, and is widely used in highway tunnels, subway tunnels and other scenarios. With the help of intelligent control system, it can dynamically optimize ventilation efficiency, ensure air circulation and meet emergency needs such as fire smoke exhaust. It is one of the key devices for safe tunnel operation.

[0003] Most current combined air valves control the direction, speed, and volume of airflow in tunnels by adjusting the blade angle. However, large-sized combined air valves, especially those used in tunnels, are prone to blade flutter or frame deformation under high-speed airflow, leading to sealing failure. In addition, traditional air valves are fixed in position after installation, requiring manual climbing and disassembly of the fixing bolts during later maintenance and repair. This is a cumbersome operation and carries the risk of falling from heights. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fireproof tunnel combined air valve to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fireproof tunnel-type combined air valve, comprising an air box, a first motor assembly fixedly connected to the top of the air box, ventilation ducts provided on both sides of the air box near the top, and an air valve body movably sleeved inside the air box near the bottom. The first motor assembly has first telescopic components on both sides inside the air box, and second motor assemblies on both sides of the top of the air valve body. The bottom of each of the second motor assemblies is connected to a second telescopic component, which is movably sleeved inside the air valve body. A wind direction adjustment component is movably sleeved near the bottom. Telescopic screws are fixedly connected to both sides of the top of the air valve body. The telescopic screws are threaded onto the inside of the first telescopic component. With the wind direction adjustment component, the first exhaust hole, and the second exhaust hole, it is beneficial for large-size combined air valves, especially tunnel air valves, to change the exhaust wind direction of the first and second exhaust holes by raising and lowering the wind direction component inside the air valve body during use. At the same time, the horizontal exhaust pipe at the bottom of the wind direction adjustment component and the main exhaust pipe prevent the problem of blade vibration or frame deformation leading to sealing failure when the wind direction changes.

[0006] In a preferred embodiment, an air volume regulating disc is movably sleeved at the top of the air valve body, an adjusting gear is movably sleeved at one side of the air volume regulating disc inside the air valve body, and a fixing disc is fixedly sleeved at the bottom of the air volume regulating disc inside the air valve body. The air volume regulating disc and the fixing disc facilitate the control of air volume through the rotation of the air volume regulating disc, avoiding the vibration caused by traditional blades that affect its normal use.

[0007] In a preferred embodiment, an air inlet chamber is provided inside the main body of the air valve and near the top. A limit groove is provided on the inner wall of the air inlet chamber where the air volume regulating disc is movably connected. A transmission groove is provided inside the main body of the air valve where the regulating gear is movably connected. Telescopic grooves are provided on both sides of the main body of the air valve where the second telescopic component is movably connected. Through the telescopic grooves, the second telescopic component can rotate inside and drive the air direction regulating component inside the air valve to rise and fall, thereby completing the air direction adjustment operation.

[0008] In a preferred embodiment, an exhaust chamber is provided inside the air valve body at the position where it is movably connected to the air direction adjustment component. Limiting grooves are provided on both sides of the inner wall of the exhaust chamber. First exhaust holes are provided on the surface of the air valve body near the bottom. Second exhaust holes are provided on the bottom perimeter of the air valve body at the position where the first exhaust holes are located. The first and second exhaust holes facilitate the flow of air into the air valve body when the air direction adjustment component is raised or lowered, thereby completing the air direction adjustment operation.

[0009] In a preferred embodiment, the first exhaust vents are all tilted outward at 45 degrees, and the second exhaust vents are all tilted outward at 20 degrees. By tilting the first exhaust vents outward at 45 degrees and the second exhaust vents outward at 20 degrees, it is beneficial to further increase the position of the wind direction when the descent of the wind direction adjustment component increases.

[0010] In a preferred embodiment, an electric motor is driven to the top of the adjusting gear. The electric motor is fixedly connected to one side of the top of the air valve body. By adjusting the gear, the air volume regulating disc can be rotated to change the air volume.

[0011] In a preferred embodiment, both the airflow regulating disc and the fixed disc have regularly arranged circular through holes inside. A meshing gear is fixedly sleeved on the surface of the airflow regulating disc, and the meshing gear meshes with the regulating gear. The circular through holes on the surfaces of the airflow regulating disc and the fixed disc are staggered. The staggered arrangement of the circular through holes on the surfaces of the airflow regulating disc and the fixed disc facilitates changing the degree of overlap between the circular through holes on the surface of the airflow regulating disc and the fixed disc by rotating the airflow regulating disc, thereby changing the airflow.

[0012] In a preferred embodiment, limit sliders are provided on both sides of the surface of the wind direction adjustment component, and adjusting screws are fixedly connected to both sides of the top of the wind direction adjustment component. The adjusting screws are threaded into the interior of the second telescopic component. The bottom of the wind direction adjustment component has neatly arranged horizontal exhaust pipes near the edge, and the bottom of the wind direction adjustment component has neatly arranged main exhaust pipes inside the horizontal exhaust pipes. The adjusting screws are threaded into the interior of the second telescopic component, which facilitates the adjustment of the adjusting screws by rotating the second telescopic component, thereby changing the wind direction.

[0013] In a preferred embodiment, all the transverse exhaust ducts are inclined outward at 50 degrees, and all the main exhaust ducts are inclined outward at 15 degrees. By having the transverse exhaust ducts inclined outward at 50 degrees and the main exhaust ducts inclined outward at 15 degrees, it is beneficial that when the air direction adjustment component is located inside the air valve body, the air discharged through the transverse exhaust ducts is blocked and converged by the inner wall of the air valve body, and the converged airflow is vertically sent into the tunnel, so that the air direction can be directed inward.

[0014] The technical effects and advantages of this invention are as follows:

[0015] 1. The present invention, by providing a wind direction adjustment component, a first exhaust hole, and a second exhaust hole, is beneficial for large-size combined air valves, especially tunnel air valves, to change the exhaust wind direction of the first and second exhaust holes by raising and lowering the wind direction adjustment component inside the air valve body during use. At the same time, the horizontal exhaust pipe at the bottom of the wind direction adjustment component and the main exhaust pipe prevent the problem of blade vibration or frame deformation leading to sealing failure when the wind direction changes.

[0016] 2. By incorporating a first motor assembly and a first telescopic assembly, this invention facilitates the quick separation and disassembly of the valve body from the air box during subsequent maintenance and repair. This reduces the need for manual disassembly and lowers the labor intensity of manual labor.

[0017] 3. The present invention, by providing a first motor assembly, a first telescopic assembly, a telescopic screw, and a valve body, facilitates the maintenance of a high-altitude valve by having the first motor assembly drive the first telescopic assembly to rotate, causing the telescopic screw to push the valve body down, thereby reducing the distance between the valve body and the ground, thus avoiding manual climbing for maintenance and preventing the risk of falling from heights. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 3 This is a cross-sectional schematic diagram of the bellows structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the main structure of the air valve of the present invention.

[0022] Figure 5 This is a schematic cross-sectional view of the main structure of the air valve of the present invention.

[0023] Figure 6 This is a schematic diagram of the air volume regulating disc structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the wind direction adjustment component of the present invention.

[0025] The attached figures are labeled as follows: 1. Air box; 2. First motor assembly; 3. Ventilation duct; 4. First telescopic assembly; 5. Air valve body; 501. Air inlet cavity; 502. Limiting groove; 503. Transmission groove; 504. Telescopic groove; 505. Exhaust cavity; 506. Limiting slide groove; 507. First exhaust hole; 508. Second exhaust hole; 6. Second motor assembly; 7. Second telescopic assembly; 8. Air direction adjustment assembly; 801. Limiting slider; 802. Adjusting screw; 803. Horizontal exhaust pipe; 804. Main exhaust pipe; 9. Telescopic screw; 10. Air volume adjustment disc; 1001. Circular through hole; 1002. Meshing gear; 11. Fixed disc; 12. Adjusting gear; 1201. Electric motor. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The fireproof tunnel combined air valve involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Reference Figures 1-7 As shown, the present invention provides a fireproof tunnel combined air valve, including an air box 1, a first motor assembly 2 fixedly connected to the top of the air box 1, ventilation ducts 3 opened on both sides of the surface of the air box 1 near the top, an air valve body 5 movably sleeved inside the air box 1 near the bottom, a first telescopic assembly 4 opened on both sides of the first motor assembly 2 inside the air box 1, a second motor assembly 6 opened on both sides of the top of the air valve body 5, a second telescopic assembly 7 drivenly connected to the bottom of the second motor assembly 6, the second telescopic assembly 7 movably sleeved inside the air valve body 5, a wind direction adjustment assembly 8 movably sleeved inside the air valve body 5 near the bottom, and telescopic screws 9 fixedly connected to both sides of the top of the air valve body 5, the telescopic screws 9 being threadedly sleeved inside the first telescopic assembly 4;

[0028] In this embodiment, by providing a wind direction adjustment component 8, a first exhaust hole 507, and a second exhaust hole 508, it is beneficial for large-size combined air valves, especially tunnel air valves, to change the exhaust wind direction of the first exhaust hole 507 and the second exhaust hole 508 when they are in use, through the wind direction adjustment component 8 moving up and down inside the air valve body 5. At the same time, through the horizontal exhaust pipe 803 at the bottom of the wind direction adjustment component 8 and the main exhaust pipe 804, when the wind direction changes, the problem of blade vibration or frame deformation leading to sealing failure is avoided.

[0029] Among them, an air volume regulating plate 10 is movably sleeved at the top of the air valve body 5, an adjusting gear 12 is movably sleeved at one side of the air volume regulating plate 10 inside the air valve body 5, and a fixing plate 11 is fixedly sleeved at the bottom of the air volume regulating plate 10 inside the air valve body 5.

[0030] In this embodiment, the air volume regulating disc 10 and the fixed disc 11 facilitate the control of air volume through the rotation of the air volume regulating disc 10, avoiding the vibration caused by traditional blades that affect its normal use.

[0031] Among them, an air inlet cavity 501 is provided inside the air valve body 5 and near the top. A limit groove 502 is provided on the inner wall of the air volume regulating plate 10 that is movably connected inside the air inlet cavity 501. A transmission groove 503 is provided inside the air valve body 5 at the position of the movably connected regulating gear 12. Expansion grooves 504 are provided on both sides of the air valve body 5 at the position of the movably connected second telescopic component 7.

[0032] In this embodiment, the telescopic groove 504 facilitates the rotation of the second telescopic component 7 inside, which drives the air direction adjustment component 8 inside the air valve body 5 to rise and fall, thereby completing the air direction adjustment operation.

[0033] Among them, the air valve body 5 has an exhaust chamber 505 located at the position where the air direction adjustment component 8 is movably connected. The exhaust chamber 505 has a limit groove 506 on both sides of the inner wall. The air valve body 5 has a first exhaust hole 507 on all four sides near the bottom. The air valve body 5 has a second exhaust hole 508 on all four sides at the bottom of the first exhaust hole 507.

[0034] In this embodiment, the first exhaust hole 507 and the second exhaust hole 508 facilitate the airflow to be delivered through the first exhaust hole 507 and the second exhaust hole 508 when the airflow direction adjustment component 8 is raised or lowered, thereby completing the airflow direction adjustment operation.

[0035] Among them, the first ventilation hole 507 is tilted outward at a 45-degree angle, and the second ventilation hole 508 is tilted outward at a 20-degree angle.

[0036] In this embodiment, the first exhaust vent 507 is tilted outward at a 45-degree angle, and the second exhaust vent 508 is tilted outward at a 20-degree angle. This is beneficial for further increasing the position of the wind direction when the descent of the wind direction adjustment component 8 increases.

[0037] Among them, the top position of the adjusting gear 12 is connected to the electric motor 1201, and the electric motor 1201 is fixedly connected to one side of the top of the air valve body 5.

[0038] In this embodiment: by adjusting the gear 12, it is beneficial to drive the air volume regulating disk 10 to rotate and complete the change of air volume.

[0039] The air volume regulating plate 10 and the fixed plate 11 are both provided with regularly arranged circular through holes 1001. A meshing gear 1002 is fixedly sleeved on the surface of the air volume regulating plate 10. The meshing gear 1002 meshes with the regulating gear 12. The circular through holes 1001 on the surfaces of the air volume regulating plate 10 and the fixed plate 11 are interwoven.

[0040] In this embodiment, the circular through holes 1001 on the surfaces of the air volume regulating plate 10 and the fixed plate 11 are intertwined, which facilitates the change of the air volume by rotating the air volume regulating plate 10 to change the degree of overlap with the circular through holes 1001 on the surface of the fixed plate 11.

[0041] Among them, limit sliders 801 are provided on both sides of the surface of the wind direction adjustment component 8, and adjustment screws 802 are fixedly connected to both sides of the top of the wind direction adjustment component 8. The adjustment screws 802 are threaded into the inside of the second telescopic component 7. The bottom of the wind direction adjustment component 8 is provided with neatly arranged horizontal exhaust pipes 803 near the edge. The bottom of the wind direction adjustment component 8 is provided with neatly arranged main exhaust pipes 804 inside the horizontal exhaust pipes 803.

[0042] In this embodiment, the adjusting screws 802 are all threaded onto the inside of the second telescopic assembly 7, which facilitates the extension and retraction of the adjusting screws 802 by the rotation of the second telescopic assembly 7, thereby changing the wind direction.

[0043] Among them, the horizontal exhaust pipes 803 are all inclined outward at fifty degrees, and the main exhaust pipes 804 are all inclined outward at fifteen degrees.

[0044] In this embodiment, the horizontal exhaust pipes 803 are all tilted outward at 50 degrees, and the main exhaust pipes 804 are all tilted outward at 15 degrees. This is beneficial because when the air direction adjustment component 8 is located inside the air valve body 5, the air discharged through the horizontal exhaust pipes 803 is blocked and converged by the inner wall of the air valve body 5, and the converged airflow is vertically sent into the tunnel, so that the air direction can be directed inward.

[0045] The working principle of this invention is as follows: When ventilation is carried out inside the tunnel, external air enters the air box 1 through the ventilation duct 3, then enters the air volume regulating plate 10 at the top of the air valve body 5 through the air box 1, then enters the circular through hole 1001 on the surface of the air volume regulating plate 10 through the circular through hole 1001 opened in the fixed plate 11, and then enters the air inlet chamber 501 and the air outlet chamber 505. Then the air is discharged into the tunnel through the main exhaust pipe 804 and the transverse exhaust pipe 803 at the bottom of the air direction regulating component 8 that is movably sleeved inside the exhaust chamber 505.

[0046] Then, when the wind speed needs to be adjusted, the electric motor 1201 is started, which drives the adjusting gear 12 to rotate. The adjusting gear 12 then drives the meshing gear 1002 on one side, which in turn drives the air volume regulating disk 10 to rotate. The rotation of the air volume regulating disk 10 causes the circular through hole 1001 to gradually overlap with the circular through hole 1001 on the surface of the fixed disk 11, thereby increasing the amount of air entering the air inlet cavity 501 from inside the air box 1. When the air enters and is discharged through the main exhaust pipe 804 and the horizontal exhaust pipe 803, the horizontal exhaust pipe 803 is tilted outward at a 50-degree angle. The air discharged through the horizontal exhaust pipe 803 collides with the inner wall of the exhaust cavity 505. The air that bounces off the inner wall of the exhaust cavity 505 converges at the lower middle position of the air valve body 5, and is then driven by the air discharged through the main exhaust pipe 804 to exhaust the air to the vertical part of the air valve body 5.

[0047] Then, when it is necessary to adjust the direction of the exhaust air, the second motor assembly 6 at the top of the airflow direction adjustment assembly 8 is activated, causing the second motor assembly 6 to drive the second telescopic assembly 7 to rotate. The rotation of the second telescopic assembly 7 then drives the adjusting screw 802 inside. The adjusting screw 802 is then limited by the airflow direction adjustment assembly 8 and the limiting slider 801, causing the airflow direction adjustment assembly 8 to descend vertically inside the exhaust cavity 505. When the airflow direction adjustment assembly 8 reaches the bottom of the first exhaust hole 507 in the air valve body 5, the air inside the exhaust cavity 505 flows to the horizontal exhaust pipe 803, the main exhaust pipe 804, and the first exhaust hole 507 respectively. The air is discharged, and because the first exhaust hole 507 is tilted outward at a 45-degree angle, the range of air discharged increases. Then, the air direction adjustment component 8 continues to descend to the bottom position of the second exhaust hole 508, so that the horizontal exhaust pipe 803 and the main exhaust pipe 804 are removed from the exhaust cavity 505. At this time, the air is discharged through the horizontal exhaust pipe 803, the main exhaust pipe 804, the first exhaust hole 507 and the second exhaust hole 508. At this time, the horizontal exhaust pipe 803 is removed from the exhaust cavity 505, and the discharged air diffuses in all directions. Then, the second exhaust hole 508 is tilted at a 20-degree angle, so that the air is discharged horizontally, thereby increasing the exhaust range of the air.

[0048] Then, when the entire air valve body 5 needs to be inspected, the first motor assembly 2 at the top of the air box 1 is started, so that the first motor assembly 2 drives the first telescopic assembly 4 to rotate. Then, the rotation of the first telescopic assembly 4 drives the telescopic screw 9, and then the telescopic screw 9 restricts the telescopic screw 9 on the other side of the top of the air valve body 5, so that the air valve body 5 descends vertically. Then, when the air valve body 5 is close to the ground, the air valve body 5 can be manually maintained and inspected. The operation is simple and convenient, avoiding the safety hazards caused by manual climbing.

[0049] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fireproof tunnel-type combined air valve, comprising an air box (1), characterized in that: The top of the wind box (1) is fixedly connected to a first motor assembly (2). Ventilation ducts (3) are provided on both sides of the surface of the wind box (1) and near the top. A valve body (5) is movably sleeved inside the wind box (1) and near the bottom. The first motor assembly (2) is provided with a first telescopic assembly (4) on both sides inside the wind box (1). The top of the valve body (5) is provided with a second motor assembly (6). The bottom of the second motor assembly (6) is connected to a second telescopic assembly (7). The second telescopic assembly (7) is movably sleeved inside the valve body (5). A wind direction adjustment assembly (8) is movably sleeved inside the valve body (5) and near the bottom. Telescopic screws (9) are fixedly connected on both sides of the top of the valve body (5). The telescopic screws (9) are threaded onto the inside of the first telescopic assembly (4). An air volume regulating disc (10) is movably sleeved at the top of the air valve body (5), an adjusting gear (12) is movably sleeved at one side of the air volume regulating disc (10) inside the air valve body (5), and a fixing disc (11) is fixedly sleeved at the bottom of the air volume regulating disc (10) inside the air valve body (5). An air inlet cavity (501) is provided inside the main body (5) and near the top. A limit groove (502) is provided on the inner wall of the air volume regulating plate (10) that is movably connected inside the air inlet cavity (501). A transmission groove (503) is provided inside the main body (5) at the position of the movably connected regulating gear (12). Expansion grooves (504) are provided on both sides of the main body (5) at the position of the movably connected second telescopic component (7). The air valve body (5) has an exhaust chamber (505) located inside the air valve body (5) at the position where the air direction adjustment component (8) is movably connected. Limiting grooves (506) are provided on both sides of the inner wall of the exhaust chamber (505). First exhaust holes (507) are provided on the surface of the air valve body (5) and near the bottom. Second exhaust holes (508) are provided on the bottom of the air valve body (5) where the first exhaust holes (507) are located. The first exhaust vent (507) is tilted outward at a 45-degree angle, and the second exhaust vent (508) is tilted outward at a 20-degree angle.

2. The fireproof tunnel combined air valve according to claim 1, characterized in that: An electric motor (1201) is connected to the top of the adjusting gear (12), and the electric motor (1201) is fixedly connected to one side of the top of the air valve body (5).

3. The fireproof tunnel combined air valve according to claim 1, characterized in that: Both the air volume regulating plate (10) and the fixed plate (11) have regularly arranged circular through holes (1001) inside. A meshing gear (1002) is fixedly sleeved on the surface of the air volume regulating plate (10). The meshing gear (1002) meshes with the regulating gear (12). The circular through holes (1001) on the surfaces of the air volume regulating plate (10) and the fixed plate (11) are staggered.

4. A fire-resistant tunnel combined air valve according to claim 1, characterized in that: Limiting sliders (801) are provided on both sides of the surface of the wind direction adjustment component (8). Adjusting screws (802) are fixedly connected to both sides of the top of the wind direction adjustment component (8). The adjusting screws (802) are threaded into the inside of the second telescopic component (7). A neatly arranged horizontal exhaust pipe (803) is provided at the bottom of the wind direction adjustment component (8) near the edge. A neatly arranged main exhaust pipe (804) is provided at the bottom of the wind direction adjustment component (8) inside the horizontal exhaust pipe (803).

5. A fire-resistant tunnel combined air valve according to claim 4, characterized in that: The horizontal exhaust pipes (803) are all inclined outward at 50 degrees, and the main exhaust pipes (804) are all inclined outward at 15 degrees.

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