A tunnel air duct air volume regulating device

Abstract

The present invention provides a tunnel wind duct air volume regulating device, the improvement of which is that the tunnel wind duct air volume regulating device comprises: a wind duct tube, arranged along the excavation direction of the tunnel face; comprising an air inlet pipe and an air outlet pipe arranged perpendicular to each other; an air plate angle adjustment component, arranged at the connection between the air inlet pipe and the air outlet pipe; an electric pole, arranged along the axial direction of the air outlet pipe; an electromagnetic plate, fixedly connected to the first end of the electric pole; and an air volume automatic balancing component, arranged at the other end of the air outlet pipe and connected to the second end of the electric pole. The air inlet volume of the air plate angle adjustment component and the air outlet volume through the air volume automatic balancing component can be kept consistent, so as to achieve the air circulation effect of the F-type tunnel, improve the comfort, achieve a uniform wind speed distribution, increase the ventilation range, reduce noise and wind speed differences, and improve the air mixing effect, thereby improving the comfort and effect of air flow.

Description

Technical Field

[0001] The invention belongs to the technical field of real-time regulation of tunnel air volume, and in particular relates to a tunnel air duct air volume regulation device. Background Art

[0002] The multi-face F-type wind duct is a device used in tunnel ventilation systems, designed to effectively guide and distribute wind flow to provide uniform ventilation. Its structural shape is similar to the letter "F" and consists of multiple faces. This type of wind duct is usually made of metal and has the characteristics of high temperature resistance, corrosion resistance and strong durability. The wind duct is usually installed at the entrance and exit or key positions of the tunnel to guide air into the tunnel or exhaust smoke. The multi-face design can increase the diffusion range and coverage area of ​​the wind flow. Each face has a special shape and angle so that the air can be evenly dispersed and diffused when passing through the wind duct, thereby achieving better ventilation effect. In addition, the multi-face structure also helps to reduce wind resistance and improve ventilation efficiency. The multi-face F-type wind duct plays an important role in the tunnel ventilation system, which can provide uniform, diffused and optimized ventilation effects to ensure the circulation and quality of air in the tunnel.

[0003] When the existing extended air outlet pipe is continuously extended inward, the air volume at the end of the extended air outlet pipe will decrease, resulting in inconsistent air volumes at the ends of the fixed air outlet pipe and the extended air outlet pipe, and the ventilation effects at different locations in the tunnel will be different. Some areas may be subject to weaker ventilation, while other areas may be subject to stronger ventilation, resulting in uneven distribution of ventilation effects, and the uneven distribution of ventilation effects may affect the comfort in the tunnel. In areas with weaker ventilation, problems such as poor ventilation and reduced air quality may occur, while in areas with stronger ventilation, personnel may feel uncomfortable with strong winds, affecting comfort and user experience, and if the air volume at the end of the extended air outlet pipe is reduced too much, it may not meet the requirements of the ventilation system design, and the air flow in the tunnel may not be sufficient to meet the demand. This may result in the inability to provide adequate ventilation in time in some emergency situations, such as fire or toxic gas leakage.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a tunnel air duct air volume adjustment device, especially for tunnel multi-face F-type air ducts, which solves the problem of inconsistent air volume at the ends of the fixed air outlet pipe and the extended air outlet pipe in the tunnel multi-face F-type air duct.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a tunnel wind duct air volume regulating device, the improvement of which is that the tunnel wind duct air volume regulating device comprises:

[0007] The wind tube 2 comprises a tubular object and is arranged along the excavation direction of the tunnel face; the wind tube 2 comprises an air inlet pipe 201 and an air outlet pipe 203 which are arranged perpendicularly to each other;

[0008] The wind plate angle adjustment component is arranged at the first end of the air outlet pipe 203; the first end of the air outlet pipe 203 is the connection between the air inlet pipe 201 and the air outlet pipe 203;

[0009] The wind plate angle adjustment component comprises:

[0010] The airflow adjustment plate 14 comprises a plate-shaped structure and is arranged perpendicularly to the axis of the air outlet pipe 203; the airflow adjustment plate 14 can rotate along with the air volume of the air inlet;

[0011] The tunnel air duct air volume regulating device also includes:

[0012] The electric pole 22 includes a rod-shaped body, and electric wires are arranged inside the rod-shaped body; the electric pole 22 is arranged along the axial direction of the air outlet pipe 203;

[0013] The electromagnetic plate 23 includes a plate-shaped magnet and is fixedly connected to the first end of the electric pole 22;

[0014] The air volume automatic balancing component is arranged at the second end of the air outlet pipe 203 and connected to the second end of the electric pole 22; the air volume automatic balancing component includes:

[0015] A sliding rheostat 19, comprising a coil;

[0016] The wind measuring plate 18 comprises a hard metal of a plate-like structure, and the wind measuring plate 18 is arranged on the sliding rheostat 19 and can move on the sliding rheostat 19; the wind measuring plate 18 is connected to the electric pole 22, so as to drive the electric pole 22 to move, and further drive the electromagnetic plate 23 connected to the electric pole 22 to move;

[0017] By rotating the airflow adjustment plate 14 and changing the moving positions of the electromagnetic plate 23, the electric pole 22 and the wind measuring plate 18, the air intake through the wind plate angle adjustment component and the air outlet through the air volume automatic balancing component can be kept consistent.

[0018] Wherein, a connecting shaft 13 is respectively provided at the upper end and the lower end of the air flow adjustment plate 14, and is connected to the air outlet pipe 203 through the connecting shaft 13;

[0019] The wind plate angle adjustment component also includes:

[0020] A gear 15, coaxially arranged on the connecting shaft 13 at the lower end of the airflow adjustment plate 14;

[0021] The rack 27 is arranged in parallel with the axis of the air outlet pipe 203 and in the air outlet pipe 203, and is connected with the gear 15;

[0022] The airflow adjustment plate 14 rotates along with the gear 15 , thereby driving the rack 27 to move.

[0023] Wherein, the wind plate angle adjustment component also includes:

[0024] The adjusting and placing block 24 comprises a strip, in the middle of which a receiving groove 25 is provided;

[0025] A T-shaped block 26, disposed in the receiving groove 25, capable of sliding in the adjusting and placing block 24;

[0026] The rack 27 is fixedly arranged on the surface of the T-shaped block 26 and can move with the T-shaped block 26;

[0027] A first spring 16, disposed at a first end of the T-shaped block 26;

[0028] The magnet 6 is disposed at the second end of the T-shaped block 26 and is movable in the receiving groove 25 .

[0029] The T-shaped block 26 includes: a long rod and a short rod which are fixedly connected perpendicularly to each other and have different lengths; the T-shaped block 26 also includes a base arranged in the receiving groove 25; the short rod is fixedly connected perpendicularly to the base, and the long rod is parallel to the base.

[0030] Wherein, the air volume automatic balancing component also includes:

[0031] The power ring block 20 includes a semi-cylindrical battery; a receiving cavity is provided in the middle of the power ring block 20 to form a circular block cavity 28;

[0032] The sliding rheostat 19 comprises a cylindrical coil, which is axially parallel to the electric quantity ring block 20 and is arranged in the circular block cavity 28;

[0033] A slider 29, comprising a block of metal, is disposed on the surface of the sliding rheostat 19, is connected to the wind measuring plate 18 and the sliding rheostat 19, and drives the wind measuring plate 18 to move on the sliding rheostat 19;

[0034] The connecting plate 17 , which includes hard metal, is disposed on the electrical charge ring block 20 ; the connecting plate 17 is connected to the wind measuring plate 18 via a second spring 21 .

[0035] The automatic air volume balancing component further includes an air volume detector 3 , which is arranged corresponding to the wind measuring plate 18 and is used to measure the air volume passing through the wind measuring plate 18 .

[0036] Wherein, the ventilation device further comprises: a blade angle adjustment component, which is arranged at the air inlet of the air inlet pipe 201;

[0037] The blade angle adjustment assembly comprises:

[0038] The tunnel fan 4 is coaxially arranged with the air inlet pipe 201;

[0039] An axial connecting column 7, comprising a columnar body, is coaxially arranged with the tunnel fan 4; a first end of the connecting column comprises an axial connecting column gear coaxially arranged with the axial connecting column;

[0040] The radial connecting column 30 comprises a columnar body and a radial connecting column gear coaxially arranged with the radial connecting column, wherein the radial connecting column gear is vertically connected with the axial connecting column gear;

[0041] The fan blade 12 is arranged at the second end of the axial connecting column 7.

[0042] Wherein, the blade angle adjustment assembly further comprises:

[0043] The circular ring 8, including a spiral ring, is arranged concentrically with the axial connecting column 7; the circular ring 8 is connected to the axial connecting column 7 through a connecting rod arranged perpendicularly to the radial direction of the connecting column 7;

[0044] The electric telescopic rod 5 comprises a nested rod, which is arranged parallel to the axis of the connecting column and connected to the circular ring 8;

[0045] The sliding block 9 comprises a block-shaped body, a through hole is arranged at the center of the sliding block 9, and is coaxially connected with the axial connecting column 7;

[0046] The pull rod 10 , including a rod member, is connected to the sliding pull block 9 and the fan blade 12 .

[0047] The blade angle adjustment assembly further includes: an arc ring cylinder 11, which includes a strip of metal; the arc ring cylinder 11 is connected to the blades 12 and the axial connecting column 7 at the same time.

[0048] The air inlet pipe 201 is vertically connected to at least two parallel air outlet pipes 203; the two parallel air inlet pipes 201 are arranged in a channel perpendicular to the tunnel face, and the multiple air outlet pipes 203 are arranged along the excavation direction of the corresponding tunnel face.

[0049] Beneficial effects:

[0050] (1) The air volume adjustment device of the air duct is suitable for F-type tunnels with multiple faces. The wind measuring plate, the first spring, the second spring, the sliding rheostat, the electromagnetic plate, the rack, the gear and the connecting shaft cooperate with each other to change the angle of the air flow adjustment plate in real time, keep the air volume at the end of the fixed air outlet pipe and the extended air outlet pipe consistent, achieve better air circulation effect of the F-type tunnel, improve comfort, achieve uniform wind speed distribution, increase ventilation range, reduce noise and wind speed difference, and improve air mixing effect, thereby improving the comfort and effect of air flow.

[0051] (2) The air volume regulating device of the air duct is suitable for F-type tunnels with multiple faces. Through the cooperation of the tunnel fan, electric telescopic rod, sliding pull block, pull rod, arc ring cylinder and fan blades, the output power of the tunnel fan and the angle of the fan blade body are adjusted to change the air volume of the air inlet pipe, thereby realizing precise control of the air volume of the air inlet pipe. The fan speed and fan blade angle are adjusted in real time according to needs, thereby accurately controlling the size of the air volume to meet different needs.

[0052] (3) The adjustment of air intake directly affects the air circulation effect of the F-type tunnel and achieves better ventilation effect. Increasing the air intake can increase the air flow rate, promote air circulation, reduce pollutant concentration, and improve the air quality of the F-type tunnel air. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The drawings constituting a 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 of the present invention. Among them:

[0054] Figure 1 It is a schematic diagram of the overall structure of the F-type air duct involved in the present invention;

[0055] Figure 2 It is a schematic diagram of the overall structure of the tunnel air duct air volume regulating device according to the present invention;

[0056] Figure 3 A schematic diagram of the connection of the wind plate angle adjustment assembly according to the present invention;

[0057] Figure 4 This is a schematic diagram of the bottom structure of the wind plate angle adjustment assembly according to the present invention;

[0058] Figure 5This is a schematic diagram of the T-shaped block structure involved in the present invention;

[0059] Figure 6 This is a connection diagram of an automatic air volume balancing component according to the present invention;

[0060] Figure 7 This is a schematic diagram of the internal structure of the air volume automatic balancing component involved in the present invention;

[0061] Figure 8 This is one of the internal structure schematic diagrams of the blade angle adjustment assembly according to the present invention;

[0062] Fig. 9 This is the second schematic diagram of the internal structure of the blade angle adjustment assembly according to the present invention;

[0063] Fig.10 The overall structural diagram of the present invention applied to an F-shaped tunnel;

[0064] Among them: 1. F-type tunnel; 2. wind tube; 201. air inlet pipe; 202. fixed air outlet pipe; 203. air outlet pipe; 3. air volume detector; 4. tunnel fan; 5. electric telescopic rod; 6. magnet; 7. axial connecting column; 8. circular ring; 9. sliding pull block; 10. pull rod; 11. arc ring cylinder; 12. fan blade; 13. connecting shaft; 14. air flow adjustment plate; 15. gear; 16. first spring; 17. connecting plate; 18. wind measuring plate; 19. sliding rheostat; 20. electric power circular ring block; 21. second spring; 22. electric pole; 23. electromagnet plate; 24. adjustment placement block; 25. accommodating groove; 26. T-shaped block; 27. rack; 28. circular ring block cavity; 29. ​​slider; 30. radial connecting column. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0066] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0067] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0068] The multi-face F-type wind duct is a device used in tunnel ventilation systems, designed to effectively guide and distribute wind flow to provide uniform ventilation. Its structural shape is similar to the letter "F" and consists of multiple faces. This type of wind duct is usually made of metal and has the characteristics of high temperature resistance, corrosion resistance and strong durability. The wind duct is usually installed at the entrance and exit or key positions of the tunnel to guide air into the tunnel or exhaust smoke. The multi-face design can increase the diffusion range and coverage area of ​​the wind flow. Each face has a special shape and angle so that the air can be evenly dispersed and diffused when passing through the wind duct, thereby achieving better ventilation effect. In addition, the multi-face structure also helps to reduce wind resistance and improve ventilation efficiency. The multi-face F-type wind duct plays an important role in the tunnel ventilation system, which can provide uniform, diffused and optimized ventilation effects to ensure the circulation and quality of air in the tunnel.

[0069] When the existing extended air outlet pipe is continuously extended inward, the air volume at the end of the extended air outlet pipe will decrease, resulting in inconsistent air volumes at the ends of the fixed air outlet pipe and the extended air outlet pipe, and the ventilation effects at different locations in the tunnel will be different. Some areas may be subject to weaker ventilation, while other areas may be subject to stronger ventilation, resulting in uneven distribution of ventilation effects, and the uneven distribution of ventilation effects may affect the comfort in the tunnel. In areas with weaker ventilation, problems such as poor ventilation and reduced air quality may occur, while in areas with stronger ventilation, personnel may feel uncomfortable with strong winds, affecting comfort and user experience, and if the air volume at the end of the extended air outlet pipe is reduced too much, it may not meet the requirements of the ventilation system design, and the air flow in the tunnel may not be sufficient to meet the demand. This may result in the inability to provide adequate ventilation in time in some emergency situations, such as fire or toxic gas leakage.

[0070] In view of the deficiencies in the prior art, the present invention provides an air volume regulating device for an F-type air duct with multiple tunnel faces in a tunnel, which solves the problem of inconsistent air volumes at the ends of the fixed air outlet pipe and the extended air outlet pipe in the F-type air duct with multiple tunnel faces in a tunnel.

[0071] The tunnel air duct air volume regulating device according to the present invention is improved in that the tunnel air duct air volume regulating device comprises:

[0072] like Figure 1 As shown, the wind tube 2 comprises a tubular object, which is arranged along the excavation direction of the tunnel face; the wind tube 2 comprises an air inlet pipe 201 and an air outlet pipe 203 which are arranged perpendicular to each other;

[0073] like Figure 2 As shown, the wind plate angle adjustment component is arranged at the first end of the air outlet pipe 203; the first end of the air outlet pipe 203 is the connection between the air inlet pipe 201 and the air outlet pipe 203;

[0074] The wind plate angle adjustment assembly includes: an airflow adjustment plate 14, including a plate-shaped structure, which is arranged perpendicular to the axis of the air outlet pipe 203; the airflow adjustment plate 14 can rotate with the air volume of the air inlet;

[0075] Among them, Figure 3 As shown, a connecting shaft 13 is respectively provided at the upper end and the lower end of the air flow adjustment plate 14, and the air flow adjustment plate 14 is connected to the air outlet pipe 203 through the connecting shaft 13;

[0076] Preferably, the wind plate angle adjustment assembly further includes:

[0077] A gear 15, coaxially arranged on the connecting shaft 13 at the lower end of the airflow adjustment plate 14;

[0078] The rack 27 is arranged in parallel with the axis of the air outlet pipe 203 and in the air outlet pipe 203, and is connected with the gear 15;

[0079] The airflow adjustment plate 14 rotates along with the gear 15 , thereby driving the rack 27 to move.

[0080] Preferably, Figure 4 As shown, the wind plate angle adjustment component also includes:

[0081] The adjusting and placing block 24 comprises a strip, in the middle of which a receiving groove 25 is provided;

[0082] A T-shaped block 26, disposed in the receiving groove 25, capable of sliding in the adjusting and placing block 24;

[0083] The rack 27 is disposed on the surface of the T-shaped block 26 and can move with the T-shaped block 26;

[0084] A first spring 16, disposed at a first end of the rack 27;

[0085] The magnet 6 , including a block-shaped magnet, is disposed at the second end of the rack 27 and is movable in the receiving groove 25 .

[0086] Specifically, the wind plate angle adjustment assembly includes a gear 15 and an adjustment placement block 24, the adjustment placement block 24 is installed inside the air outlet pipe 203, the gear 15 is coaxially installed on the outer ring of the connecting shaft 13 near the bottom of the air duct 2, and a receiving groove 25 is opened inside the adjustment placement block 24, and a T-shaped block 26 is movably installed on the inner wall of the receiving groove 25.

[0087] A rack 27 is installed on one end surface of the T-shaped block 26, and the surface of the rack 27 is meshed with the outer surface of the gear 15. A first spring 16 is installed on one end of the T-shaped block 26, and one end surface of the first spring 16 is fixedly connected to the inner wall of the accommodating groove 25. A magnet 6 is installed on the other end of the T-shaped block 26.

[0088] Specifically, Figure 5 As shown, the T-shaped block includes a long rod and a short rod which are fixedly connected perpendicularly to each other and have different lengths. The T-shaped block 26 also includes a metal strip base which can be placed in the receiving groove 25 and can slide in the receiving groove 25. The T-shaped block is placed in the receiving groove 25. Specifically, the short rod in the T-shaped block 26 is fixedly connected perpendicularly to the base, so that the long rod of the T-shaped block 26 can be parallel to the base, so that the rack 27 can be fixedly set on the long rod; the first spring 16 and the magnet 6 are placed on both sides of the T-shaped block 26.

[0089] like Figure 6 As shown, the present application further includes: an electric pole 22, including a rod-shaped body, and an electric wire is arranged inside the rod-shaped body; the electric pole 22 is arranged along the axial direction of the wind tube 2; the electric wire is used to pass current to control the magnetism of the magnet plate 23;

[0090] The electromagnetic plate 23 includes a plate-shaped magnet and is fixedly connected to the first end of the electric pole 22; specifically, the fixing method is not limited, as long as it ensures that the electric pole 22 and the electromagnetic plate 23 can move synchronously.

[0091] Automatic air volume balancing components, such as Figure 6 As Figure 7 As shown, it is arranged at the second end of the air outlet pipe 203, that is, at the air outlet of the air outlet pipe 203, and connected to the second end of the wire 22; the air volume automatic balancing component includes:

[0092] A sliding rheostat 19, comprising a coil;

[0093] The wind measuring plate 18 comprises a hard metal of a plate-like structure, preferably stainless steel or copper, and the wind measuring plate 18 is connected to the sliding rheostat 19 and can move on the sliding rheostat 19; the wind measuring plate 18 is connected to the electric pole 22, so that the electromagnetic plate 23 is driven to move through the electric pole 22;

[0094] Preferably, the air volume automatic balancing component further comprises:

[0095] The power ring block 20 includes a semi-cylindrical battery; a receiving cavity is provided in the middle of the power ring block 20;

[0096] The sliding rheostat 19 comprises a cylindrical coil and is arranged in the accommodating cavity in parallel with the axial direction of the electric quantity circular ring block 20;

[0097] A slider 29, which is arranged on the surface of the sliding rheostat 19 and is connected to the wind measuring plate 18 and the sliding rheostat 19 at the same time, and the slider drives the wind measuring plate 18 to move on the sliding rheostat 19;

[0098] The connecting plate 17 comprises a plate-shaped hard material, preferably stainless steel or copper; it is arranged on the edge of the electrical charge ring block 20 ; the connecting plate 17 is connected to the wind measuring plate 18 via a second spring 21 .

[0099] Preferably, the automatic air volume balancing component further includes an air volume detector 3, including a wind speed sensor and a pressure difference meter, etc., and the air volume detector commonly used in the prior art can be used. The air volume detector 3 is arranged corresponding to the wind measuring plate 18, and is used to measure the air volume passing through the wind measuring plate 18.

[0100] By rotating the airflow adjustment plate 14, the electric pole 22 and the electromagnetic plate 23 are driven to move, so that the air intake through the wind plate angle adjustment component and the air outlet through the air volume automatic balancing component can be kept consistent.

[0101] Specifically, the automatic air volume balancing component includes an electric quantity ring block 20 and an annular block cavity 28, and the electric quantity ring block 20 is coaxially installed on the inner wall of the air outlet pipe 203. The electric quantity ring block 20 is a semi-cylinder, with a lithium battery inside and an insulating material wrapped outside. Among them, the electric quantity ring block 20 is recessed in the middle to form a receiving cavity wrapped by the semi-cylindrical side wall, which constitutes the annular block cavity 28. A sliding rheostat 19 is installed on the inner wall of the electric quantity ring block 20 parallel to its axis, and a wind measuring plate 18 is fixedly installed on the upper surface of the sliding rheostat 19 through a slider 29. A connecting plate 17 is installed on the edge of the electric quantity ring block 20, that is, on the end face of the electric quantity ring block 20 close to the air inlet.

[0102] A second spring 21 is installed on one side of the connecting plate 17, and the second spring 21 is fixedly connected to the wind measuring plate 18. A power pole 22 is connected to the other side of the connecting plate 17, and an electromagnetic plate 23 is arranged at the other end of the power pole 22. When wind passes through the wind measuring plate 18, the second spring 21 will be deformed and lengthened by the wind force, thereby driving the electromagnetic plate 23 away from the air inlet of the air outlet pipe 203.

[0103] The lithium battery used in the power ring block 20 is used for discharge and control of magnetism. Specifically, the wind measuring plate 18 above the sliding rheostat 19 is affected by the wind force and drives the slider 29 below the wind measuring plate 18 to move. The movement of the slider 29 on the coil will change the resistance of the sliding rheostat, increasing or decreasing the resistance, thereby controlling the discharge amount of the power ring block 20. The power is transmitted to the electromagnetic plate 23 through the electric pole 22, which controls the magnetic force of the electromagnetic plate 23, changes the magnetic force of the electromagnetic plate, and finally drives the gear bar 27 to move.

[0104] The tunnel air duct air volume regulating device involved in the present application also includes: a fan blade angle adjustment component, which is arranged at the air inlet of the air duct pipe;

[0105] like Figures 8 to 9 As shown, the blade angle adjustment assembly includes:

[0106] The tunnel fan 4 is coaxially arranged with the air inlet pipe 201;

[0107] An axial connecting column 7, comprising a columnar body, is coaxially arranged with the tunnel fan 4; a first end of the connecting column comprises an axial connecting column gear coaxially arranged with the axial connecting column;

[0108] The radial connecting column 30 comprises a columnar body and a radial connecting column gear coaxially arranged with the radial connecting column, wherein the radial connecting column gear is vertically connected with the axial connecting column gear;

[0109] The fan blade 12 is arranged at the second end of the axial connecting column 7.

[0110] The fan drives the radial connecting column 30 to rotate, and drives the axial connecting column 7 to rotate through the two vertically connected connecting column gears, and finally causes the fan blades 12 to rotate.

[0111] Preferably, Figure 8 As shown, the blade angle adjustment assembly also includes:

[0112] The circular ring 8, including a spiral ring, is arranged concentrically with the connecting column 11; the circular ring 8 is connected by a connecting rod which is radially perpendicular to the connecting column;

[0113] The electric telescopic rod 5 comprises a rod, which is arranged parallel to the axis of the connecting column and connected to the circular ring 8;

[0114] The sliding block 9 comprises a block-shaped body, a through hole is arranged at the center of the sliding block 9, the sliding block 9 is coaxially connected to the axial connecting column 7, and is fixedly connected to the electric telescopic rod 5;

[0115] The pull rod 10 , including a rod member, is connected to the sliding pull block 9 and the fan blade 12 .

[0116] Preferably, the blade angle adjustment assembly further comprises: an arc ring cylinder 11, which is made of hard material; the arc ring cylinder 11 is connected to the blade 12 and the axial connection column 7 at the same time. The arc ring cylinder 11 has any structural shape, as long as it can be connected to the blade 12 and the axial connection column 7 at the same time, and can ensure that the blade 12 and the axial connection column 7 achieve a better synchronous rotation effect.

[0117] Specifically, the blade angle adjustment assembly includes an axial connection column 7 and four arc ring cylinders 11. The axial connection column 7 is coaxially mounted at the output end of the tunnel fan 4. The four arc ring cylinders 11 are mounted on the outer surface of the axial connection column 7, and the outer surface of each arc ring cylinder 11 is also connected to its corresponding blade 12. The tunnel fan 4 drives the radial connection column 30 to rotate, and the two vertically connected connection column gears drive the axial connection column 7 to rotate. The pull rod 10 pulls the blade body 12, and the blade body 12 drives the arc ring cylinder 11 to rotate on the axial connection column 7.

[0118] Preferably, a circular ring 8 is coaxially installed on the outer surface of the axial connecting column 7, and the outer ring of the circular ring 8 is in active contact with the inner wall of the tunnel fan 4. When the axial connecting column 7 rotates, the axial connecting column 7 drives the circular ring 8 to rotate, and the axial connecting column 7 stably drives the fan body 12 to rotate through the electric telescopic rod 5.

[0119] Preferably, a sliding block 9 is movably mounted on the outer wall of the axial connecting column 7 , an electric telescopic rod 5 is mounted inside the circular ring 8 , and an outer surface of the output end of the electric telescopic rod 5 is fixedly connected to one end surface of the sliding block 9 .

[0120] Four pull rods 10 are evenly arranged on the outer surface of the sliding block 9, and the other end of each pull rod 10 is fixedly connected to the surface of the corresponding fan blade 12. By controlling the electric telescopic rod 5 to work, the sliding block 9 is driven to move on the axial connecting column 7, so that the sliding block 9 can drive the pull rod 10 to move.

[0121] Specifically, the sliding block 9 is made of a hard material, preferably stainless steel or copper. The electric telescopic rod 5 includes two coaxial elastically nested rods, which can change the length of the electric telescopic rod. The fixed end of the electric telescopic rod is fixedly connected to the connecting rod of the circular ring 8, and the retractable end of the electric telescopic rod is connected to the sliding block 9 and can be retracted. The internal telescopic length of the electric telescopic rod is electrically controlled to move the slider 9, and then the pull rod 10 connected to the sliding block 9 and the fan blade 12 is linked to finally adjust the angle of the fan blade to achieve the effect of adjusting the air volume.

[0122] Preferably, Figure 1 As shown, the air inlet pipe 201 used in the present invention is vertically connected to at least two parallel air outlet pipes 203; the two parallel air inlet pipes 201 are arranged in a channel perpendicular to the tunnel face, and the multiple air outlet pipes 203 are arranged along the excavation direction of the corresponding tunnel face.

[0123] Specifically, the air duct 2 involved in the present application includes an air inlet pipe 201, and an air outlet pipe 203 arranged perpendicularly thereto. The air outlet pipe 203 may be more than two air outlet pipes 203 arranged in parallel, and a plurality of air outlet pipes 203 are arranged along the excavation direction of the corresponding tunnel face, which is suitable for F-type tunnels 1. The part of the air duct 2 located between the two air outlet pipes 203 forms a fixed air outlet pipe 202. A tunnel fan 4 is installed inside the air inlet pipe 201, and a fan angle adjustment component is installed inside the tunnel fan 4. An air volume detector 3 is installed inside the air outlet pipe 203 and inside the fixed air outlet pipe 202, and an air volume automatic balancing component is installed inside the air outlet pipe 203. Two connecting shafts 13 are movably installed on the inner wall of the air duct 2, and an air flow adjustment plate 14 is installed between the two connecting shafts 13, and one of the connecting shafts 13 is connected to the wind plate angle adjustment component.

[0124] The tunnel air duct air volume regulating device involved in the present application is suitable for the construction of F-type air ducts in F-type tunnels, that is, it includes an air inlet pipe 201 and a plurality of parallel air outlet pipes 203 perpendicular to the air inlet pipe 201.

[0125] Specifically, Fig.10 As shown, when repairing the F-type tunnel 1, an F-type wind tube 2 is installed on the inner wall of the top of the F-type tunnel 1, and a tunnel fan 4 is set at the air inlet of the wind tube 2 to transport air to the F-type tunnel 1 to achieve air circulation inside the F-type tunnel 1. Figures 1 to 9As shown, the wind flows inward through the air inlet pipe 201 of the wind tube 2, and under the action of the air flow adjustment plate 14, the terminal air volumes of the fixed air outlet pipe 202 and the air outlet pipe 203 are made consistent. When the air outlet pipe 203 is continuously extended toward the inside of the tunnel, the terminal air volume of the air outlet pipe 203 will decrease, and the air volume detector 3 will detect that the terminal air volume of the air outlet pipe 203 is lower than the terminal air volume of the fixed air outlet pipe 202. The driving force of the terminal air volume on the wind measuring plate 18 is reduced accordingly, and the second spring 21 with elastic deformation therefore has a tendency to return to its original state, so that the second spring 21 drives the wind measuring plate 18 to move and is no longer stretched by the wind measuring plate 18. The wind measuring plate 18 drives the slider 29 on the sliding rheostat 19 to move. When the slider 29 moves on the coil, the resistance of the sliding rheostat will be changed, making the resistance larger, thereby changing the discharge amount of the electric charge ring block 20, making the current smaller, thereby causing the electric charge ring block 20 to pass through the electric pole 22 to provide the electromagnetic plate 23 with a lower current, so that the magnetic force of the electromagnetic plate 23 is reduced. The corresponding surfaces of the electromagnetic plate 23 and the magnet 6 have the same magnetism, and the electromagnetic plate 23 and the magnet 6 directly generate a repelling force, and the magnetic force of the electromagnetic plate 23 is reduced, so the first spring 16 with elastic deformation is no longer in a compressed state, and will have a tendency to return to the original state. The first spring 16 drives the T-shaped block 26 to move in the accommodating groove 25 inside the adjusting placement block 24, thereby driving the rack 27 fixed thereto to move, and the outer surface of the rack 27 engages with the outer surface of the gear 15, so that the rack 27 drives the gear 15 to rotate, and the gear 15 drives the connecting shaft 13 to rotate, and the connecting shaft 13 slightly changes the angle of the airflow adjustment plate 14, thereby changing the air intake volume of the fixed air outlet pipe 202 and the air outlet pipe 203, so that the end air volume of the fixed air outlet pipe 202 and the air outlet pipe 203 is consistent. Changing the angle of the airflow adjustment plate 14 can adjust the air intake of the fixed air outlet pipe 202 and the extended air outlet pipe 203 in real time. When in use, the air circulation of the F-type tunnel 1 needs to be flexibly adjusted according to actual needs to improve the adaptability and comfort of the F-type tunnel 1, adjust the flexibility and balance of the air intake, and keep the air volume at the ends of the fixed air outlet pipe 202 and the air outlet pipe 203 consistent, so as to achieve a better air circulation effect of the F-type tunnel 1 and improve comfort. When necessary, changing the angle of the airflow adjustment plate 14 in real time can also make the air volume at the ends of the fixed air outlet pipe 202 and the air outlet pipe 203 consistent, achieve a uniform wind speed distribution, increase the ventilation range, reduce noise and wind speed differences, and improve the air mixing effect, thereby improving the comfort and effect of air flow.

[0126] When the air outlet pipe 203 is continuously slendered, the output power of the tunnel fan 4 and the angle of the blade 12 are adjusted to coordinate with each other to assist in adjusting the air volume of the air inlet. The angle of the blade 12 is adjusted by controlling the electric telescopic rod 5, specifically: the electric telescopic rod 5 includes two coaxial elastically nested rods, which can change the length of the electric telescopic rod. The fixed end of the electric telescopic rod 5 is fixedly connected to the connecting rod of the circular ring 8, and the telescopic end of the electric telescopic rod 5 is connected to the sliding block 9, which can drive the sliding block 9 to move on the axial connecting column 7, and the sliding block 9 drives the pull rod 10 connected to the sliding block 9 and the fan blade 12 to move, so that the pull rod 10 pulls the blade body 12. The tunnel fan 4 drives the radial connecting column and the axial connecting column to rotate, and the axial connecting column 7 drives the circular ring 8 to rotate, so that the axial connecting column 7 stably drives the blade body 12 to rotate. When the axial connecting column 7 rotates, the rotation angle of the four blades 12 is changed by the traction of the pull rod 10.

[0127] The output power of the tunnel fan 4 and the angle of the fan blades 12 are adjusted to cooperate with each other to change the air intake volume of the air inlet pipe 201, so as to achieve precise control of the air intake volume of the air inlet pipe 201. The rotation speed and the angle of the fan blades are adjusted in real time as needed, so as to accurately control the size of the air intake volume and adapt to different needs. The adjustment of the air intake volume directly affects the air circulation effect of the F-type tunnel 1 and achieves a better ventilation effect. Increasing the air intake volume can increase the flow rate of the air, promote the metabolism of the air, reduce the concentration of pollutants, and improve the air quality of the air in the F-type tunnel 1.

[0128] 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 are within the scope of protection of the pending claims of the present invention.

Claims

1. A tunnel air duct air volume regulating device, characterized in that: The tunnel air duct air volume regulating device comprises: The wind tube pipe (2) comprises a tubular object and is arranged along the excavation direction of the tunnel face; the wind tube pipe (2) comprises an air inlet pipe (201) and an air outlet pipe (203) which are arranged perpendicular to each other; An air plate angle adjustment component is arranged at the first end of the air outlet pipe (203); the first end of the air outlet pipe (203) is the connection point between the air inlet pipe (201) and the air outlet pipe (203); The wind plate angle adjustment component comprises: An airflow adjustment plate (14) comprising a plate-shaped structure, arranged perpendicularly to the axis of the air outlet pipe (203); the airflow adjustment plate (14) is capable of rotating in accordance with the air volume at the air inlet; The tunnel air duct air volume regulating device also includes: An electric pole (22) comprises a rod-shaped body, and electric wires are arranged inside the rod-shaped body; the electric pole (22) is arranged along the axial direction of the air outlet pipe (203); An electromagnetic plate (23), comprising a plate-shaped magnet, fixedly connected to the first end of the electric pole (22); An automatic air volume balancing component is arranged at the second end of the air outlet pipe (203) and connected to the second end of the electric pole (22); the automatic air volume balancing component comprises: A sliding rheostat (19), comprising a coil; A wind measuring plate (18) comprising a hard metal with a plate-like structure, the wind measuring plate (18) being arranged on the sliding rheostat (19) and being movable on the sliding rheostat (19); the wind measuring plate (18) being connected to the electric pole (22), thereby being able to drive the electric pole (22) to move, and further being able to drive the electromagnetic plate (23) connected to the electric pole (22) to move; By rotating the airflow adjustment plate (14) and changing the moving positions of the electromagnetic plate (23), the electric pole (22) and the wind measuring plate (18), the air intake volume through the wind plate angle adjustment component and the air outlet volume through the air volume automatic balancing component can be kept consistent; A connecting shaft (13) is respectively provided at the upper end and the lower end of the airflow adjustment plate (14), and is connected to the air outlet pipe (203) via the connecting shaft (13); The wind plate angle adjustment component also includes: a gear (15) coaxially arranged on the connecting shaft (13) at the lower end of the airflow adjustment plate (14); A rack (27) is arranged in the air outlet pipe (203) parallel to the axis of the air outlet pipe (203) and is cooperatively connected with the gear (15); The airflow adjustment plate (14) rotates along with the gear (15), thereby driving the rack (27) to move; The air volume automatic balancing component also includes: The electric quantity circular ring block (20) comprises a semi-cylindrical battery; a receiving cavity is provided in the middle of the electric quantity circular ring block (20) to form a circular block cavity (28); The sliding rheostat (19) comprises a cylindrical coil, which is arranged in parallel with the axial direction of the electric quantity circular ring block (20) in the circular block cavity (28); A slider (29) comprising a block of metal, the slider being arranged on the surface of the sliding rheostat (19) and being connected to both the wind measuring plate (18) and the sliding rheostat (19), the slider driving the wind measuring plate (18) to move on the sliding rheostat (19); A connecting plate (17) comprising hard metal, disposed on the electrical quantity circular ring block (20); the connecting plate (17) is connected to the wind measuring plate (18) via a second spring (21); The wind plate angle adjustment component also includes: An adjusting and placing block (24) comprises a strip, in the middle of which a receiving groove (25) is arranged; A T-shaped block (26) disposed in the receiving groove (25) and capable of sliding in the adjustment placement block (24); The rack (27) is fixedly arranged on the surface of the T-shaped block (26) and can move along with the T-shaped block (26); A first spring (16) disposed at a first end of the T-shaped block (26); A magnet (6) is arranged at the second end of the T-shaped block (26) and is capable of moving in the receiving groove (25).

2. The tunnel air duct air volume regulating device according to claim 1, characterized in that: The T-shaped block (26) comprises: a long rod and a short rod which are fixedly connected perpendicularly to each other and have different lengths; the T-shaped block (26) further comprises a base arranged in the receiving groove (25); the short rod is fixedly connected perpendicularly to the base, and the long rod is parallel to the base.

3. The tunnel air duct air volume regulating device according to claim 1, characterized in that: The automatic air volume balancing component further comprises an air volume detector (3), which is arranged corresponding to the wind measuring plate (18) and is used to measure the air volume passing through the wind measuring plate (18).

4. The tunnel air duct air volume regulating device according to claim 1, characterized in that: The tunnel wind duct air volume regulating device further comprises: a blade angle regulating component, which is arranged at the air inlet of the air inlet pipe (201); The blade angle adjustment assembly comprises: A tunnel fan (4) is coaxially arranged with the air inlet pipe (201); An axial connecting column (7) comprises a columnar body and is coaxially arranged with the tunnel fan (4); the first end of the connecting column comprises an axial connecting column gear coaxially arranged with the axial connecting column; A radial connecting column (30), comprising a columnar body, and a radial connecting column gear coaxially arranged with the radial connecting column, the radial connecting column gear being vertically connected to the axial connecting column gear; The fan blade (12) is arranged at the second end of the axial connecting column (7).

5. The tunnel air duct air volume regulating device according to claim 4, characterized in that: The blade angle adjustment assembly also includes: The circular ring (8) comprises a spiral ring and is arranged concentrically with the axial connecting column (7); the circular ring (8) is connected to the axial connecting column (7) via a connecting rod arranged radially and perpendicularly to the axial connecting column (7); An electric telescopic rod (5) comprising nested rods, arranged parallel to the axial connecting column (7) and connected to the circular ring (8); A sliding pull block (9) comprises a block-shaped body, a through hole is arranged at the center of the sliding pull block (9) and is coaxially connected to the axial connecting column (7); The pull rod (10) comprises a rod member and is connected to the sliding pull block (9) and the fan blade (12).

6. The tunnel air duct air volume regulating device according to claim 4, characterized in that: The blade angle adjustment assembly further comprises: an arc ring cylinder (11) comprising a strip of metal; the arc ring cylinder (11) is connected to the blade (12) and the axial connection column (7) at the same time.

7. The tunnel air duct air volume regulating device according to claim 1, characterized in that: The air inlet pipe (201) is vertically connected to at least two parallel air outlet pipes (203); the two parallel air inlet pipes (201) are arranged in a channel perpendicular to the tunnel face, and the plurality of air outlet pipes (203) are arranged along the excavation direction of the corresponding tunnel face.

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