Ventilation device for gas tunnel

Abstract

The invention belongs to the technical field of tunnel ventilation, and particularly relates to a ventilation device for a gas tunnel. The two sides of the top of the connecting frame are each fixedly connected with a pair of symmetrically-arranged guide rails. The surfaces of the paired guide rails are jointly connected with a moving seat in a sliding manner; the bottom surface of each moving seat is fixedly connected with a silencing cylinder; the top of the connecting frame is rotationally connected with a rotating rod; the surface of the rotating rod is fixedly connected with a pair of symmetrically arranged mounting frames; and fans are arranged at the ends, away from the rotating rod, of the mounting frames, and replacement of new and old fans at the top and the bottom of the rotating rod can be achieved through rotation of the rotating rod, so that it is guaranteed that when the damaged old fan is replaced in time, the new fan can replace the old fan in time to work, and then it is guaranteed that when the old fan is replaced or maintained, the new fan cannot work. Ventilation can still be kept in the tunnel, and therefore life health and safety of constructors are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel ventilation, in particular to a ventilation device for a gas tunnel. Background Art

[0002] A gas tunnel refers to a tunnel that may encounter gas during construction or operation. In order to ensure the safety of construction workers in the tunnel, special tunnel ventilation equipment is needed to promptly reduce the gas content in the tunnel and reduce the probability of gas explosions.

[0003] The prior art also proposes some solutions, such as the induced fan commonly used in tunnels, which mainly includes a pair of silencers and a fan body, wherein the fan body is fixedly connected to the two silencers, and the motor in the fan body drives the fan blades to rotate, thereby driving the air flow, so that the gas and other exhaust gases in the tunnel are discharged from the tunnel.

[0004] The induced fan in the prior art has a main working unit, which is the fan body between two mufflers. Since its motor needs to work for a long time, the wear and tear is relatively serious. However, during the maintenance period of the fan, the fan cannot work, which can easily cause poor air circulation in the tunnel, thereby creating a safety hazard.

[0005] To this end, the present invention provides a ventilation device for a gas tunnel. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a ventilation device for a gas tunnel described in the present invention comprises a connecting frame; a pair of symmetrically arranged guide rails are fixedly connected to both sides of the top of the connecting frame; a moving seat is slidably connected to the surfaces of the paired guide rails; a silencer is fixedly connected to the bottom surface of the moving seat; a rotating rod is rotatably connected to the top of the connecting frame; a pair of symmetrically arranged mounting frames are fixedly connected to the surface of the rotating rod; a fan is arranged at one end of the mounting frame away from the rotating rod, and the fan is fixed to the paired mounting frames by bolts; a pair of symmetrically arranged suspension rods are fixedly connected to the ends of the two pairs of guide rails away from each other; a fixed seat is fixedly connected to the top surface of the tunnel by bolts.

[0008] Preferably, the bottom surface of the connecting frame is fixedly connected with a connecting column at the center position; the surface of the connecting column is rotatably connected with a sleeve; the surface of the sleeve is fixedly connected with a pair of symmetrically arranged connecting rods; the connecting rods are slidably connected with sliding rods at one end away from the sleeve; the sliding rods are rotatably connected with a transmission rod at one end away from the connecting rod; the transmission rod is rotatably connected to the bottom of the muffler; a pair of fixed blocks are installed on the bottom surface of the connecting frame; the fixed blocks are provided with fixed grooves on one side close to the sliding rod; the bottom of the fixed groove is provided with a sliding groove; a limiting block is slidably connected in the sliding groove; a spring is fixedly connected between the limiting block and the bottom of the sliding groove.

[0009] Preferably, two springs are fixedly connected between the two fixed blocks and the connecting frame; a pressure plate is commonly fixedly connected to the bottom surfaces of the two fixed blocks; a through hole is opened on the surface of the pressure plate at the position corresponding to the connecting column; a threaded rod is arranged in the through hole, and the threaded rod is threadedly connected to the connecting column; a limiting ring is fixedly connected to the top of the pressure plate on the surface of the threaded rod, and the diameter of the limiting ring is larger than the through hole.

[0010] Preferably, both ends of the fan are fixedly connected with a docking ring 1; the end of the silencer close to the fan is fixedly connected with a docking ring 2; the surface of the docking ring 1 is provided with a plurality of evenly arranged docking holes; the surface of the docking ring 2 is fixedly connected with docking blocks at positions corresponding to the docking holes; the two docking rings 1 are inlaid with shock-absorbing pads on the sides away from each other, and the shock-absorbing pads are arranged in a ring shape.

[0011] Preferably, a rotating disk is fixedly connected to the surface of the rotating rod near both ends; a pair of symmetrically arranged aluminum plates are inlaid on the surface of the rotating disk; a reduction seat is fixedly connected to the side of the top of the connecting frame close to the rotating disk; a groove is provided on the top surface of the reduction seat, and the rotating disk is located in the groove; magnetic plates are fixedly connected to the inner walls on both sides of the groove, and the magnetic plates are made of neodymium iron boron magnets.

[0012] Preferably, one side of the two pairs of guide rails are fixedly connected with a connecting seat, and the two connecting seats are arranged symmetrically about the center of the connecting frame; one side of the connecting seat is fixedly connected with a handle; a gear set is installed between the handle and the rotating rod; a sealing plug is installed on the side where the baffles are close to each other; the sealing plug is adapted to the port of the fan; a cover plate is fixedly connected between the paired suspension rods; the cover plate is located on the top surface of the baffle, and the cover plate is slidably connected to the baffle.

[0013] Preferably, a rotation groove is provided on the surface of the baffle, and the rotation groove passes through the baffle; a rotation plate is rotatably connected inside the rotation groove, and the rotation connection between the rotation plate and the rotation groove is located at the bottom of the rotation groove; the sealing plug is fixedly connected to the surface of the rotation plate; and a support plate is fixedly connected to the bottom of the rotation plate.

[0014] Preferably, the two pairs of guide rails are fixedly connected to a support plate on one side away from each other; a double-thread screw is rotatably connected between the two support plates; the double-thread screw is rotatably connected inside the rotating rod, and the double-thread screw is driven by a servo motor; the surface of the double-thread screw is threadedly connected to a drive seat; a rotating arm is rotatably connected between the drive seat and the rotating plate.

[0015] Preferably, the bottom surface of the muffler on one side is fixedly connected with a toothed plate; the top surface inside the connecting frame is rotatably connected with a main gear, and the main gear is meshingly connected with the toothed plate; the top surface of the main gear is fixedly connected with a driving rod; the surface of the driving rod is threadedly connected with a push plate; the top surface inside the connecting frame is fixedly connected with a limiting rod at a position corresponding to the push plate; the push plate is slidably connected with the limiting rod; the top surface of the push plate is fixedly connected with a plug, and the plug is connected to an external power supply; the two fans are fixedly connected with sockets on the sides away from each other, and the plug and the socket are adapted to each other.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The ventilation device for a gas tunnel described in the present invention can realize the replacement of the old and new fans at the top and bottom of the rotating rod by rotating the rotating rod, thereby ensuring that when the damaged old fan is replaced in time, the new fan can replace the old fan in time to work, thereby ensuring that when the old fan is replaced or repaired, the tunnel can still be ventilated, thereby ensuring the life, health and safety of the construction workers.

[0018] 2. The ventilation device for a gas tunnel described in the present invention generates eddy currents by cutting the magnetic flux lines between two magnetic plates with an aluminum plate. The eddy currents are subjected to the Lorentz force in the magnetic field, thereby generating a braking torque opposite to the rotation direction of the rotating disk, thereby decelerating the rotating rod, thereby preventing the rotating rod from rotating too fast and causing the fans on both sides of the rotating rod to injure the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the connecting column in the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the silencer in the present invention;

[0023] Figure 4 It is a structural schematic diagram of the fixed block in the present invention;

[0024] Figure 5 is a cross-sectional view of a fixing block in the present invention;

[0025] Figure 6 is a cross-sectional view of the pressure plate of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the connecting frame in the present invention;

[0027] Figure 8 It is a structural schematic diagram of the rotating disk in the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the tooth plate in the present invention;

[0029] Fig.10 It is a structural schematic diagram of the push plate in the present invention;

[0030] Fig.11 It is a structural schematic diagram of the fan in the present invention;

[0031] In the figure: 1, connecting frame; 2, guide rail; 3, moving seat; 4, silencer; 5, rotating rod; 7, mounting frame; 8, fan; 9, suspension rod; 10, fixed seat; 11, connecting column; 12, sleeve; 13, connecting rod; 14, slide rod; 15, transmission rod; 16, fixing block; 17, fixing groove; 18, slide groove; 19, limiting block; 20, spring 1; 21, spring 2; 22, pressure plate; 23, through hole; 24, threaded rod; 25, limiting ring; 26, docking ring 1; 27, docking ring 2; 28, docking hole; 29. Docking block; 30. Shock-absorbing pad; 31. Rotating disk; 32. Aluminum plate; 33. Speed ​​reducer seat; 34. Groove; 35. Magnetic plate; 36. Connecting seat; 37. Handle; 38. Gear set; 39. Baffle; 40. Sealing plug; 41. Cover plate; 42. Rotating groove; 43. Rotating plate; 44. Support plate; 45. Support plate; 46. Double-thread screw; 47. Drive seat; 48. Rotating arm; 49. Tooth plate; 50. Main gear; 51. Drive rod; 52. Push plate; 53. Limit rod; 54. Socket; 55. Plug. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figure 1 to Figure 2As shown, a ventilation device for a gas tunnel according to an embodiment of the present invention comprises a connecting frame 1; a pair of symmetrically arranged guide rails 2 are fixedly connected to both sides of the top of the connecting frame 1; a moving seat 3 is slidably connected to the surfaces of the paired guide rails 2; a silencer 4 is fixedly connected to the bottom surface of the moving seat 3; a rotating rod 5 is rotatably connected to the top of the connecting frame 1; a pair of symmetrically arranged mounting frames 7 are fixedly connected to the surface of the rotating rod 5; a fan 8 is arranged at one end of the mounting frame 7 away from the rotating rod 5, and the fan 8 is fixed to the paired mounting frames 7 by bolts; the two pairs of guide rails 2 are connected to each other. A pair of symmetrically arranged suspension rods 9 are fixedly connected at one end away from each other; a fixing seat 10 is fixedly connected to the top surface of the suspension rod 9; the fixing seat 10 is installed on the top surface of the tunnel by bolts; during operation, in order to ensure the construction safety of the gas tunnel, it is necessary to ensure continuous ventilation in the tunnel, for this purpose, the embodiment of the present invention can be used, firstly, the embodiment of the present invention is installed on the top surface of the tunnel through the fixing seat 10 on the top surface of the suspension rod 9, and when the embodiment of the present invention is used for a long time, the fan 8 will inevitably age or be damaged, for this reason, it is necessary to replace part of the fan 8 of the example of the present invention, and in order to ensure To ensure air circulation in the tunnel, the user can first slide the moving seat 3 on the guide rail 2, and the two moving seats 3 drive the two silencers to move away from the fan 8. At this time, the user can rotate the fan 8 at the connecting frame 1, so that it rotates with the rotating rod 5, thereby rotating the fan 8 to be replaced at the bottom of the rotating rod 5 to the top of the rotating rod 5, and the fan 8 that has not been used at the top of the rotating rod 5 can be rotated between the two silencers. Then the user slides the silencers on both sides to move the two toward the fan 8 and reconnect them with the fan 8 into a whole, and can be used normally. After the ventilation equipment is used, the user can then remove the fan 8 that needs to be replaced on the top of the rotating rod 5 from the mounting frame 7 and repair it separately, and then install a new fan 8 on the top of the rotating rod 5 through the mounting frame 7. Thus, by rotating the rotating rod 5, the old and new fans 8 at the top and bottom of the rotating rod 5 can be replaced, thereby ensuring that when the damaged old fan 8 is replaced in time, the new fan 8 can replace the old fan 8 in time to work, thereby ensuring that when the old fan 8 is replaced or repaired, the tunnel can still maintain ventilation, thereby ensuring the life, health and safety of the construction workers.

[0034] like Figure 2 , Figure 4 and Figure 5As shown, the bottom surface of the connecting frame 1 is fixedly connected with a connecting column 11 at the center position; the surface of the connecting column 11 is rotatably connected with a sleeve 12; the surface of the sleeve 12 is fixedly connected with a pair of symmetrically arranged connecting rods 13; the ends of the connecting rods 13 away from the sleeve 12 are slidably connected with a sliding rod 14; the end of the sliding rod 14 away from the connecting rod 13 is rotatably connected with a transmission rod 15; the transmission rod 15 is rotatably connected to the bottom of the silencer 4; a pair of fixing blocks 16 are installed on the bottom surface of the connecting frame 1; the fixing blocks 16 A fixed groove 17 is provided on one side close to the slide bar 14; a slide groove 18 is provided at the bottom of the fixed groove 17; a limit block 19 is slidably connected in the slide groove 18; a spring 20 is fixedly connected between the limit block 19 and the bottom of the slide groove 18; when working, when the user moves the moving seat 3 on one side, the moving seat 3 will drive the silencer 4 to move, and the silencer 4 will drive the transmission rod 15 to move, and then the transmission rod 15 will drive the sleeve 12 to rotate through the moving slide bar 14 and the connecting rod 13, and the rotating sleeve 12 will The connecting rod 13, the sliding rod 14, the transmission rod 15 and the silencer 4 on the other side are driven to move synchronously, thereby reducing the difficulty of operation for the user. At the same time, when the silencer 4 is buckled toward the fan 8, the connecting rod 13 will first squeeze the limit block 19, so that the limit block 19 is pressed into the slide groove 18 and the spring 1 20 is compressed. After the connecting rod 13 completely enters the fixed groove 17 on the surface of the fixed block 16, since the connecting rod 13 is no longer squeezed by the limit block 19, the compressed spring 1 20 is restored and the limit block 19 is pushed out of the slide groove. 18, so that the limit block 19 and the side wall of the fixing groove 17 clamp the connecting rod 13, and at this time the end face of the silencer 4 is just buckled on the end face of the fan 8, thereby ensuring that the silencer 4 can always be buckled on both ends of the fan 8 during the operation of the fan 8, thereby avoiding the silencer 4 on both sides of the fan 8 gradually moving away from the fan 8 due to the vibration of the fan 8. When the user needs to release the limit on the connecting rod 13, the limit block 19 needs to be pressed back into the slide groove 18, and the connecting rod 13 can rotate normally.

[0035] like Figure 2 , Figure 4 and Figure 5As shown, a spring 21 is fixedly connected between the two fixing blocks 16 and the connecting frame 1; a pressing plate 22 is fixedly connected to the bottom surfaces of the two fixing blocks 16; a through hole 23 is opened on the surface of the pressing plate 22 at the corresponding position of the connecting column 11; a threaded rod 24 is arranged in the through hole 23, and the threaded rod 24 is threadedly connected to the connecting column 11; a limiting ring 25 is fixedly connected to the top of the pressing plate 22 on the surface of the threaded rod 24, and the diameter of the limiting ring 25 is larger than the through hole 23; when working, in order to facilitate the use The user quickly releases the restriction of the limit block 19 on the connecting rod 13. The user can screw the threaded rod 24 on the surface of the pressure plate 22 to drive the pressure plate 22 to descend through the limit ring 25, and then the pressure plate 22 drives the two fixed blocks 16 to descend and stretch the spring 21. When the fixed block 16 descends to the point where the limit block 19 on its surface no longer blocks the connecting rod 13, the connecting rod 13 can rotate normally. Therefore, the user no longer needs to press the limit block 19 all the time to keep the connecting rod 13 rotatable.

[0036] like Figures 1 to 3 As shown, both ends of the fan 8 are fixedly connected with a docking ring 1 26; the end of the muffler 4 close to the fan 8 is fixedly connected with a docking ring 27; the surface of the docking ring 1 26 is provided with a plurality of uniformly arranged docking holes 28; the surface of the docking ring 27 is fixedly connected with docking blocks 29 at positions corresponding to the docking holes 28; the two docking rings 1 26 are inlaid with shock-absorbing pads 30 on the sides away from each other, and the shock-absorbing pads 30 are arranged in a ring shape; when working, when the two mufflers 4 are buckled toward the fan 8, the ends of the mufflers 4 The docking ring 27 on the surface will also be buckled to the docking ring 1 26 on the end face of the fan 8, and the shock-absorbing pad 30 on the surface of the docking ring 1 26 will also be attached to the surface of the docking ring 27, so as to reduce the influence of the vibration of the fan 8 on the silencer 4. At the same time, the docking block 29 on the surface of the docking ring 27 will also be inserted into the docking hole 28 on the surface of the docking ring 1 26, so as to ensure that the silencer 4 and the end of the fan 8 can be completely aligned, thereby ensuring the smooth flow of the air duct and avoiding the blockage of the air duct due to misalignment, which affects the ventilation efficiency of the gas tunnel.

[0037] like Figure 1 , Figure 7 and Figure 8As shown, the surface of the rotating rod 5 and the positions near both ends are fixedly connected with a rotating disk 31; the surface of the rotating disk 31 is inlaid with a pair of symmetrically arranged aluminum plates 32; the top of the connecting frame 1 is fixedly connected with a reduction seat 33 on one side close to the rotating disk 31; the top surface of the reduction seat 33 is provided with a groove 34, and the rotating disk 31 is located in the groove 34; the inner walls on both sides of the groove 34 are fixedly connected with magnetic plates 35, and the magnetic plates 35 are composed of neodymium iron boron magnets; when working, when the user pushes the fan 8 to drive it to rotate When the rod 5 rotates, the rotating rod 5 will also drive the rotating disks 31 at both ends to rotate, so that when the aluminum plate 32 on the surface of the rotating disk 31 rotates to the groove 34 on the surface of the reduction seat 33, the aluminum plate 32 will cut the magnetic flux lines between the two magnetic plates 35, thereby generating eddy currents. The eddy currents are subjected to the Lorentz force in the magnetic field, and then generate a braking torque in the opposite direction of rotation of the rotating disk 31, thereby achieving deceleration of the rotating rod 5, thereby preventing the rotating rod 5 from rotating too fast and causing the fans 8 on both sides of the rotating rod 5 to injure the user.

[0038] like Figure 1 , Figure 2 and Figure 7 As shown, one side of the two pairs of guide rails 2 is fixedly connected with a connecting seat 36, and the two connecting seats 36 are centrally symmetrically arranged about the connecting frame 1; one side of the connecting seat 36 is fixedly connected with a handle 37; a gear set 38 is installed between the handle 37 and the rotating rod 5; during operation, in order to facilitate the user to rotate the rotating rod 5, the user can rotate the handle 37 at the connecting seat 36, and the handle 37 drives the rotating rod 5 to rotate through the gear set 38, so that the user can control the rotation direction of the rotating rod 5 and the fan 8 thereon, thereby avoiding collision between the fan 8 and surrounding equipment.

[0039] like Figure 1 and Figure 7 As shown, baffles 39 are fixedly connected to the top surfaces of the two movable seats 3; sealing plugs 40 are installed on the side where the two baffles 39 are close to each other; the sealing plugs 40 are adapted to the ports of the fans 8; covers 41 are fixedly connected between the paired suspension rods 9; the cover 41 is located on the top surfaces of the baffles 39, and the cover 41 is slidably connected to the baffles 39; during operation, when the muffler moves toward the fan 8, the movable seats 3 on both sides will also move toward each other, thereby causing the baffles 39 to buckle against the two ends of the fan 8 at the top of the rotating rod 5, and the sealing plugs 40 to be inserted into the two ends of the fan 8, so that the cover 41, the sealing plugs 40 and the baffles 39 can cover the fan 8 at the top of the rotating rod 5, thereby preventing debris or dust from entering the inside when it is not in use, thereby affecting the service life of the fan 8.

[0040] like Figure 7As shown, a rotation groove 42 is opened on the surface of the baffle 39, and the rotation groove 42 runs through the baffle 39; a rotation plate 43 is rotatably connected inside the rotation groove 42, and the rotation connection between the rotation plate 43 and the rotation groove 42 is located at the bottom of the rotation groove 42; the sealing plug 40 is fixedly connected to the surface of the rotation plate 43; a support plate 44 is fixedly connected to the bottom of the rotation plate 43; during operation, when the damaged fan 8 rotates to the top of the rotating rod 5, the user needs to first unscrew the bolts between the top fan 8 and the mounting frame 7, and then rotate the rotation plate 43 at the rotation groove 42 to rotate it from a vertical state to a horizontal state, and during the rotation process, the support plate 44 at the bottom of the rotating plate 43 will lift the fan 8, thereby facilitating the user to remove the damaged fan 8.

[0041] like Figure 7 As shown, the two pairs of guide rails 2 are fixedly connected to the sides away from each other with support plates 45; a double-thread screw 46 is rotatably connected between the two support plates 45; the double-thread screw 46 is rotatably connected to the inside of the rotating rod 5, and the double-thread screw 46 is driven by a servo motor; a driving seat 47 is threadedly connected to the surface of the double-thread screw 46; a rotating arm 48 is rotatably connected between the driving seat 47 and the rotating plate 43; during operation, when the user needs to rotate the rotating plate 43, the user can drive the double-thread screw 46 to rotate through the motor, and the rotating double-thread screw 46 drives the surface thereof The two driving seats 47 move in the directions away from each other, and then the driving seats 47 pull the rotating arm 48, so that the rotating arm 48 drives the rotating plate 43 to deflect, so that the user does not need to manually rotate the rotating plate 43 to lift the fan 8, so that the user can free both hands to hold the fan 8, and prevent the fan 8 from directly sliding off the support plate 44 during the process of being lifted by the support plate 44. At the same time, since the rotating plates 43 on both sides rotate at the same time, the support plates 44 on both sides can also generate a lifting force on the fan 8 at the same time, thereby preventing uneven force on both sides of the fan 8 from causing the fan 8 to be stuck on the mounting frame 7.

[0042] like Figure 1 , Fig. 9 , Fig.10 and Fig.11As shown, the bottom surface of the muffler on one side is fixedly connected with a toothed plate 49; the top surface inside the connecting frame 1 is rotatably connected with a main gear 50, and the main gear 50 is meshed with the toothed plate 49; the top surface of the main gear 50 is fixedly connected with a driving rod 51; the surface of the driving rod 51 is threadedly connected with a push plate 52; the top surface inside the connecting frame 1 is fixedly connected with a limit rod 53 at a position corresponding to the push plate 52; the push plate 52 is slidably connected with the limit rod 53; the top surface of the push plate 52 is fixedly connected with a plug 55, and the plug 55 is connected to an external power supply; the two fans 8 are fixed on one side away from each other. It is connected to a socket 54, and the plug 55 is adapted to the socket 54; during operation, when the silencers on both sides move toward the middle fan 8, the silencers will drive the tooth plate 49 to push the main gear 50 to rotate, and the rotating main gear 50 will drive the driving rod 51 to rotate, and the rotating driving rod 51 will drive the support plate 44 threadedly connected thereto to slide upward along the limit plate, so that the push plate 52 can insert the plug 55 into the socket 54 on the surface of the fan 8, and then the fan 8 is powered on, thereby avoiding manual connection by the user, thereby reducing the difficulty of operation and improving the usability of the embodiment of the present invention.

[0043] During operation, in order to ensure the construction safety of the gas tunnel, it is necessary to ensure continuous ventilation in the tunnel. For this purpose, the embodiment of the present invention can be used. First, the embodiment of the present invention is installed on the top surface of the tunnel through the fixing seat 10 on the top surface of the suspension rod 9. After the embodiment of the present invention is used for a long time, the fan 8 will inevitably age or be damaged. For this reason, it is necessary to replace part of the fan 8 of the example of the present invention. In order to ensure the air circulation in the tunnel, the user can first slide the moving seat 3 on the guide rail 2, and the two moving seats 3 will drive the two silencers to move away from the fan 8. At this time, the user can rotate the fan 8 at the connecting frame 1 to rotate with the rotating rod 5, thereby rotating the fan 8 to be replaced at the bottom of the rotating rod 5 to the top of the rotating rod 5, and the top of the rotating rod 5 that has not yet been replaced is not replaced. The fan 8 in use can be rotated to between the two silencers, and then the user slides the silencers on both sides so that the two move toward the fan 8 and are reassembled with the fan 8 into a whole, and can be used normally as a ventilation device. Then the user can remove the fan 8 that needs to be replaced on the top of the rotating rod 5 from the mounting frame 7 and perform separate repairs. Then a new fan 8 is installed on the top of the rotating rod 5 through the mounting frame 7. Thus, by rotating the rotating rod 5, the old and new fans 8 at the top and bottom of the rotating rod 5 can be replaced, thereby ensuring that when the damaged old fan 8 is replaced in time, the new fan 8 can replace the old fan 8 in time to work, thereby ensuring that when the old fan 8 is replaced or repaired, the tunnel can still be ventilated, thereby ensuring the life, health and safety of the construction workers.

[0044] When the user moves the moving seat 3 on one side, the moving seat 3 will drive the silencer 4 to move, and the silencer 4 will drive the transmission rod 15 to move, and then the transmission rod 15 will drive the sleeve 12 to rotate through the movable slide rod 14 and the connecting rod 13, and the rotating sleeve 12 will drive the connecting rod 13, the slide rod 14, the transmission rod 15 and the silencer 4 on the other side to move synchronously, thereby reducing the user's operating difficulty. At the same time, when the silencer 4 is buckled toward the fan 8, the connecting rod 13 will first squeeze the limit block 19, so that the limit block 19 is pressed into the slide groove 18 and compresses the spring 1 20, and the connecting rod 13 will be completely inserted into the fixed groove 17 on the surface of the fixed block 16. Since the connecting rod 13 is no longer squeezed by the limit block 19, the compressed spring 20 recovers and pushes the limit block 19 out of the slide groove 18, so that the limit block 19 and the side wall of the fixing groove 17 clamp the connecting rod 13. At this time, the end face of the silencer 4 is just buckled on the end face of the fan 8, thereby ensuring that the silencer 4 can always be buckled on both ends of the fan 8 during the operation of the fan 8, thereby avoiding the silencer 4 on both sides of the fan 8 gradually moving away from the fan 8 due to the vibration of the fan 8. When the user needs to release the limit on the connecting rod 13, the limit block 19 needs to be pressed back into the slide groove 18, and the connecting rod 13 can rotate normally.

[0045] In order to facilitate the user to quickly release the restriction of the limit block 19 on the connecting rod 13, the user can screw the threaded rod 24 on the surface of the pressure plate 22 to drive the pressure plate 22 to descend through the limit ring 25, and then the pressure plate 22 drives the two fixed blocks 16 to descend and stretch the spring 21. When the fixed block 16 descends to the point where the limit block 19 on its surface no longer blocks the connecting rod 13, the connecting rod 13 can rotate normally. Therefore, the user no longer needs to press the limit block 19 all the time to keep the connecting rod 13 rotatable.

[0046] When the two silencers 4 are buckled toward the fan 8, the docking ring 27 on the end face of the silencer 4 will also be buckled toward the docking ring 1 26 on the end face of the fan 8, and the shock-absorbing pad 30 on the surface of the docking ring 1 26 will also be attached to the surface of the docking ring 27, thereby reducing the impact of the vibration of the fan 8 on the silencer 4. At the same time, the docking block 29 on the surface of the docking ring 27 will also be inserted into the docking hole 28 on the surface of the docking ring 1 26, thereby ensuring that the silencer 4 and the end of the fan 8 can be completely aligned, thereby ensuring the smooth flow of the air duct and avoiding the blockage of the air duct due to misalignment, thereby affecting the ventilation efficiency of the gas tunnel.

[0047] When the user pushes the fan 8 to drive the rotating rod 5 to rotate, the rotating rod 5 will also drive the rotating disks 31 at both ends to rotate, so that when the aluminum plate 32 on the surface of the rotating disk 31 rotates to the groove 34 on the surface of the reduction seat 33, the aluminum plate 32 will cut the magnetic flux lines between the two magnetic plates 35, thereby generating eddy currents, and the eddy currents are subjected to the Lorentz force in the magnetic field, and then generate a braking torque in the opposite direction of rotation of the rotating disk 31, thereby achieving deceleration of the rotating rod 5, thereby preventing the rotating rod 5 from rotating too fast and causing the fans 8 on both sides of the rotating rod 5 to injure the user.

[0048] In order to facilitate the user to rotate the rotating rod 5, the user can rotate the handle 37 at the connecting seat 36, and the handle 37 drives the rotating rod 5 to rotate through the gear set 38, so that the user can control the rotation direction of the rotating rod 5 and the fan 8 thereon, thereby avoiding collision between the fan 8 and surrounding equipment.

[0049] When the silencer moves toward the fan 8, the movable seats 3 on both sides will also move toward each other, so that the baffle 39 is buckled toward the two ends of the fan 8 at the top of the rotating rod 5, and the sealing plug 40 is inserted into the two ends of the fan 8. As a result, the cover plate 41, the sealing plug 40 and the baffle 39 can cover the fan 8 at the top of the rotating rod 5, thereby preventing debris or dust from entering the inside when it is not in use, thereby affecting the service life of the fan 8.

[0050] When the damaged fan 8 rotates to the top of the rotating rod 5, the user needs to first unscrew the bolts between the top fan 8 and the mounting frame 7, and then rotate the rotating plate 43 at the rotating groove 42 to rotate it from a vertical state to a horizontal state. During the rotation process, the support plate 44 at the bottom of the rotating plate 43 will lift the fan 8, thereby facilitating the user to remove the damaged fan 8.

[0051] When the user needs to rotate the rotating plate 43, the user can drive the double-thread screw 46 to rotate through the motor, and the rotating double-thread screw 46 drives the two driving seats 47 on its surface to move in the direction away from each other, and then the driving seat 47 pulls the rotating arm 48, so that the rotating arm 48 drives the rotating plate 43 to deflect, so that the user does not need to manually rotate the rotating plate 43 to lift the fan 8, so that the user can free up both hands to hold the fan 8, avoiding the fan 8 from directly sliding off the support plate 44 during the process of being lifted by the support plate 44, and at the same time, since the rotating plates 43 on both sides rotate at the same time, the support plates 44 on both sides can also generate a lifting force on the fan 8 at the same time, thereby avoiding uneven force on both sides of the fan 8, which causes the fan 8 to be stuck on the mounting frame 7.

[0052] When the silencers on both sides move toward the middle fan 8, the silencers will drive the tooth plate 49 to push the main gear 50 to rotate, and the rotating main gear 50 will drive the driving rod 51 to rotate, and the rotating driving rod 51 will drive the support plate 44 threadedly connected thereto to slide upward along the limit plate, so that the push plate 52 can insert the plug 55 into the socket 54 on the surface of the fan 8, thereby powering on the fan 8, thereby avoiding manual connection by the user, thereby reducing the difficulty of operation and improving the usability of the embodiments of the present invention.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A ventilation device for a gas tunnel, characterized in that: It includes a connecting frame; a pair of symmetrically arranged guide rails are fixedly connected to both sides of the top of the connecting frame; a moving seat is slidably connected to the surfaces of the paired guide rails; a silencer is fixedly connected to the bottom surface of the moving seat; a rotating rod is rotatably connected to the top of the connecting frame; a pair of symmetrically arranged mounting frames are fixedly connected to the surface of the rotating rod; a fan is arranged at one end of the mounting frame away from the rotating rod, and the fan is fixed to the paired mounting frames by bolts; a pair of symmetrically arranged suspension rods are fixedly connected to the ends of the two pairs of guide rails away from each other; a fixed seat is fixedly connected to the top surface of the suspension rod; the fixed seat is installed on the top surface of the tunnel by bolts.

2. A ventilation device for a gas tunnel according to claim 1, characterized in that: The bottom surface of the connecting frame is fixedly connected with a connecting column at the center position; the surface of the connecting column is rotatably connected with a sleeve; the surface of the sleeve is fixedly connected with a pair of symmetrically arranged connecting rods; the connecting rods are slidably connected with sliding rods at one end away from the sleeve; the sliding rods are rotatably connected with a transmission rod at one end away from the connecting rod; the transmission rod is rotatably connected to the bottom of the muffler; a pair of fixed blocks are installed on the bottom surface of the connecting frame; the fixed blocks are provided with fixed grooves on one side close to the sliding rod; the bottom of the fixed groove is provided with a sliding groove; a limiting block is slidably connected in the sliding groove; a spring is fixedly connected between the limiting block and the bottom of the sliding groove.

3. A ventilation device for a gas tunnel according to claim 2, characterized in that: Two springs are fixedly connected between the two fixed blocks and the connecting frame; a pressure plate is fixedly connected to the bottom surfaces of the two fixed blocks; a through hole is opened on the surface of the pressure plate at the corresponding position of the connecting column; a threaded rod is arranged in the through hole, and the threaded rod is threadedly connected to the connecting column; a limiting ring is fixedly connected to the top of the pressure plate on the surface of the threaded rod, and the diameter of the limiting ring is larger than the through hole.

4. A ventilation device for a gas tunnel according to claim 3, characterized in that: Both ends of the fan are fixedly connected with a docking ring 1; the end of the silencer close to the fan is fixedly connected with a docking ring 2; the surface of the docking ring 1 is provided with a plurality of evenly arranged docking holes; the surface of the docking ring 2 is fixedly connected with docking blocks at positions corresponding to the docking holes; the two docking rings 1 are inlaid with shock-absorbing pads on the sides away from each other, and the shock-absorbing pads are arranged in a ring shape.

5. A ventilation device for a gas tunnel according to claim 1, characterized in that: A rotating disk is fixedly connected to the surface of the rotating rod near both ends; a pair of symmetrically arranged aluminum plates are inlaid on the surface of the rotating disk; a reduction seat is fixedly connected to the side of the top of the connecting frame close to the rotating disk; a groove is provided on the top surface of the reduction seat, and the rotating disk is located in the groove; magnetic plates are fixedly connected to the inner walls on both sides of the groove, and the magnetic plates are made of neodymium iron boron magnets.

6. A ventilation device for a gas tunnel according to claim 5, characterized in that: One side of the two pairs of guide rails is fixedly connected with a connecting seat, and the two connecting seats are centrally symmetrically arranged with respect to the connecting frame; one side of the connecting seat is fixedly connected with a handle; and a gear set is installed between the handle and the rotating rod.

7. A ventilation device for a gas tunnel according to claim 1, characterized in that: The top surfaces of the two movable seats are fixedly connected with baffles; a sealing plug is installed on the side where the two baffles are close to each other; the sealing plug is adapted to the port of the fan; a cover plate is fixedly connected between the paired suspension rods; the cover plate is located on the top surface of the baffle, and the cover plate is slidably connected to the baffle.

8. A ventilation device for a gas tunnel according to claim 7, characterized in that: A rotating groove is provided on the surface of the baffle, and the rotating groove penetrates the baffle; a rotating plate is rotatably connected inside the rotating groove, and the rotating connection between the rotating plate and the rotating groove is located at the bottom of the rotating groove; the sealing plug is fixedly connected to the surface of the rotating plate; and a supporting plate is fixedly connected to the bottom of the rotating plate.

9. A ventilation device for a gas tunnel according to claim 8, characterized in that: The two pairs of guide rails are fixedly connected to support plates on the sides away from each other; a double-thread screw is rotatably connected between the two support plates; the double-thread screw is rotatably connected inside the rotating rod, and the double-thread screw is driven by a servo motor; the surface of the double-thread screw is threadedly connected to a drive seat; a rotating arm is rotatably connected between the drive seat and the rotating plate.

10. A ventilation device for a gas tunnel according to claim 1, characterized in that: The bottom surface of the muffler on one side is fixedly connected with a toothed plate; the top surface inside the connecting frame is rotatably connected with a main gear, and the main gear is meshed with the toothed plate; the top surface of the main gear is fixedly connected with a driving rod; the surface of the driving rod is threadedly connected with a push plate; the top surface inside the connecting frame is fixedly connected with a limit rod at a position corresponding to the push plate; the push plate is slidably connected with the limit rod; the top surface of the push plate is fixedly connected with a plug, and the plug is connected to an external power supply; the two fans are fixedly connected with sockets on the sides away from each other, and the plug and the socket are adapted to each other.

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