Cold region tunnel air curtain structure and mounting method thereof

Abstract

The invention relates to the technical field of tunnel air curtains, and discloses a cold region tunnel air curtain structure which comprises a tunnel body and a cavity formed in the tunnel body, a draught fan is arranged on the outer side of the tunnel body, the output end of the draught fan is connected with a first air pipe, the tail end of the first air pipe is connected with a first communicating pipe, and the first communicating pipe is provided with a plurality of connecting ports. The connecting port is connected with a plurality of second air pipes communicating with the cavity, a plurality of connecting grooves are formed in the inner wall between the tunnel body and the cavity, mounting blocks are slidably connected into the connecting grooves, mounting grooves are formed in the mounting blocks, and nozzles are rotationally connected into the mounting grooves. The air curtain nozzle can effectively control air flow in a tunnel, can adaptively regulate and control the air curtain nozzle, can effectively protect the idle air curtain nozzle, prevents the air curtain nozzle from being eroded by external impurities in the long-term idle process, and is high in working performance and convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel air curtains, and in particular to a cold region tunnel air curtain structure and an installation method thereof. Background Art

[0002] The wind curtain is a facility used for tunnel ventilation. The wind curtain can effectively control the air flow in the tunnel to ensure air quality and safety. The existing patent document with application number CN2008102052946 and publication date 20110209 discloses a tunnel entrance high-speed heat circulation wind curtain construction method for the entrance of the rail transit main line and the entrance and exit line in high-latitude and cold areas. The method is to install a high-speed hot air curtain at the tunnel entrance when the underground section of the subway leads to the ground, forming a thick wind curtain wall at the tunnel entrance to block the invasion of severe cold air outside the tunnel and reduce heat exchange; when it is a parallel double tunnel, a connecting channel and a detour channel are added to the tunnel partition wall to effectively guide the train piston wind; at the same time, a circulating air duct, a track crossing channel and a circulation room are installed to realize the circulation of hot air, effectively reduce the heat demand of the adjacent station, stabilize the station temperature, reduce the freezing phenomenon caused by the cold and hot intersection surface of the tunnel entrance, and make driving safe.

[0003] Although the existing tunnel air curtain can be used for tunnel ventilation, after being installed inside the tunnel, the air outlet position of the air curtain nozzle is difficult to adaptively adjust according to application requirements. In this process, it brings great trouble to the staff and is inconvenient to use. For this reason, we propose a cold zone tunnel air curtain structure and its installation method. Summary of the invention

[0004] In order to solve the technical problem that the existing tunnel air curtain is inconvenient to use, the present invention provides a cold region tunnel air curtain structure and an installation method thereof.

[0005] The present invention is implemented by the following technical scheme: a wind curtain structure of a cold zone tunnel, comprising a tunnel body and a cavity opened in the tunnel body, a fan is arranged on the outside of the tunnel body, an output end of the fan is connected to a wind duct 1, a tail end of the wind duct 1 is connected to a connecting pipe 1, the connecting pipe 1 is provided with a plurality of connecting ports, the connecting ports are connected to a plurality of wind ducts 2 connected to the cavity, a plurality of connecting grooves are provided on the inner wall between the tunnel body and the cavity, a mounting block is slidably connected to the interior of the connecting groove, the mounting block is provided with a mounting groove, a nozzle is rotatably connected to the interior of the mounting groove, a connecting pipe 2 is installed at the end of the nozzle located inside the tunnel body, a protective assembly for protecting the nozzle is arranged in the tunnel body, the wind duct 1 is blown by the operation of the fan, the airflow inside the wind duct 1 is transported to the inside of the cavity through the connecting pipe 1 and the wind duct 2, the airflow is ejected through the nozzle on the tunnel body to form a wind curtain, the connecting pipe 2 is moved, and the nozzle can be driven to deflect through the rotation and cooperation of the nozzle and the mounting groove, and the corresponding angle of the nozzle can be regulated at this time.

[0006] As a further improvement of the above scheme, the protection component includes a block sliding inside the tunnel body, a plurality of baffles 1 are fixed on the outer side of the block, a baffle 2 fixed on the inner wall of the tunnel body is provided on the outer side of the nozzle, the baffles 1 and 2 work in coordination, a driving sleeve is fixed to the inner wall at both ends of the top of the block, a screw rod is passed through the internal thread of the driving sleeve, a loading groove is provided at the bottom of the tunnel body, a shell is fixed inside the loading groove, the inner cavity of the shell is a cylindrical structure, a plurality of connecting holes are provided on the top of the shell, a closing block for closing the connecting holes is rotatably connected inside the shell, and a rotating shaft is rotatably connected inside the shell, The outer wall of the rotating shaft is fixed with a plurality of transmission blocks fixed on the closing block, the inner wall on one side of the bottom of the tunnel body is rotatably connected with a transfer shaft, the outer wall of the transfer shaft and the outer wall of the rotating shaft are both fixedly sleeved with a transmission wheel, the outside of the transmission wheel is provided with a transmission belt matched with the transmission wheel, the outer wall of the transfer shaft is fixedly sleeved with a driving gear, the outer side of the driving gear is provided with a rack plate 1 meshing with the driving gear, the outer side of the rack plate 1 is fixed with a plurality of transmission rods whose other ends are fixed on the stop block, through the operation of the protective component, the idle nozzles can be protected, the debris and dust inside the tunnel body can be collected, and the connecting hole can be closed according to the use requirements.

[0007] As a further improvement of the above scheme, a fixing plate 1 is fixed to the top inner wall at one end of the tunnel body, and a fixing plate 2 is fixed to the top inner wall at the other end of the tunnel body. One end of the screw rod is transmission-connected to a motor, and the motor is fixed on the fixing plate 2. The other end of the screw rod is rotatably connected to the fixing plate 1. The inner walls on both sides of the tunnel body are provided with sliding grooves corresponding to baffle 1. The end of baffle 1 away from the block slides in the adjacent sliding groove. The operation of the motor can drive the screw rod to rotate, and the baffle 1 can be supported and guided by the sliding groove, thereby improving the stability of the block.

[0008] As a further improvement of the above scheme, assembly grooves are provided on the inner walls at both ends of the connecting groove, a slider is slidably connected to the inside of the assembly groove, a clamping block is slidably penetrated inside the groove opening of the assembly groove, and clamping grooves are provided at both ends of the mounting block. One end of the clamping block slides in an adjacent clamping groove, and the other end of the clamping block is fixed to an adjacent slider. A plurality of connecting springs are fixed on the side of the slider away from the clamping block, and the other end of the connecting springs is fixed to the inner wall of the end of the assembly groove. The nozzle can be disassembled and replaced through the cooperation of the above components.

[0009] As a further improvement of the above scheme, a mounting frame is provided on the outer side of the tunnel body, a delivery pump is fixed on the inner wall of one side of the mounting frame, the input end of the delivery pump is connected to an input pipe connected to the shell, the output end of the delivery pump is connected to an output pipe, the end of the output pipe away from the delivery pump is connected to a connecting pipe fixed on the inner wall of the mounting frame, a discharge pipe is installed on one side of the top of the connecting pipe, the tail end of the discharge pipe is connected to a connecting pipe three, the connecting pipe three is tiltedly arranged inside the mounting frame, a bearing plate is provided below the connecting pipe three, a plurality of support plates whose other ends are fixed to the bearing plate are fixed on one side of the connecting pipe three close to the bearing plate, a plurality of mounting holes are provided at the bottom of the connecting pipe three, a receiving pipe is slidably inserted inside the mounting hole, a pushing plate is slidably connected inside the lower horizontal end of the connecting pipe three, a plurality of return springs whose other ends are fixed to the push plate are fixed on the inner wall of the lower horizontal end of the connecting pipe three, and a The reel shaft, the push plate is fixed with a connecting rope on one side away from the return spring, the other end of the connecting rope is fixed on the outer wall of the reel shaft, the connecting tube is slidably connected with a piston located between the output tube and the discharge tube, the top of the connecting tube is provided with a sliding hole, the sliding hole is slidably inserted with a rack plate 2 fixed on the piston, the outer wall of the reel shaft is fixedly sleeved with a linkage gear meshing with the rack plate 2, the bottom end of the receiving tube is provided with a slot, the slot is rotatably connected with a clamping block, both sides of the clamping block located inside the slot are fixed with a linkage shaft rotatably connected to the inner wall of the slot, the side of the carrier plate close to the clamping block is provided with a plurality of clamping grooves corresponding to the receiving tube, the end of the clamping block away from the receiving tube is slidably inserted inside the adjacent clamping groove, through the cooperation of the above components, the debris inside the connecting tube 3 can be evenly entered into each receiving tube, the receiving tube is loaded with debris, and the staff can conveniently remove the corresponding receiving tube from the mounting frame. 。

[0010] As a further improvement of the above scheme, the racks on the rack plate 2 are arranged at intervals, and the connecting pipe 3 is provided with a sliding hole. The connecting rope slides inside the sliding hole, and the connecting rope can slide flexibly through the sliding hole.

[0011] As a further improvement of the above solution, stabilizing plates are fixed to both ends of the bearing plate, and the stabilizing plates are fixed to the mounting frame. The bearing plate can be fixed to the mounting frame through the stabilizing plates.

[0012] As a further improvement of the above solution, the card block is a trapezoidal structure, and the depth of the assembly groove is greater than the length of the card block. The card block can be effectively stored through the assembly groove whose depth is greater than the length of the card block.

[0013] As a further improvement of the above solution, the other end of the adapter shaft is rotatably connected to a support block, and the support block is fixed on the shell. The adapter shaft can be supported by the support block to improve the stability of the adapter shaft.

[0014] A method for installing an air curtain structure in a cold region tunnel comprises the following steps:

[0015] S1: Fix the fan on the top of the tunnel body;

[0016] S2: Use air duct 1, connecting pipe 1 and air duct 2 to connect the fan to the cavity;

[0017] S3: Install the air curtain assembly on the tunnel body;

[0018] S4: Fixing the installation box on the outside of the tunnel body, and loading the installation frame and the components on the installation frame into the installation box;

[0019] S5: Test run the installed air curtain to ensure that it can operate normally.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention can effectively control the air flow in the tunnel, can adaptively adjust the air curtain nozzle according to application requirements, and can effectively protect the idle air curtain nozzle to prevent the air curtain nozzle from being eroded by external debris during long-term idleness.

[0022] 2. The present invention can collect debris and dust inside the tunnel, and the debris collection component can be opened and closed according to usage requirements, so as to facilitate the use of the staff, and can facilitate the staff to inspect, maintain and replace the nozzles of the tunnel air curtain. It is easy to use, and can promote the debris inside the conveying component to enter the receiving component, avoiding the debris inside the conveying component from being retained inside the conveying component, and can promote the debris inside the conveying component to evenly enter each receiving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a cold region tunnel air curtain structure;

[0024] Figure 2 This is a schematic diagram of the structure of a block in a cold region tunnel air curtain structure;

[0025] Figure 3 It is a structural schematic diagram of a shell in a cold region tunnel air curtain structure;

[0026] Figure 4 It is a structural schematic diagram of a mounting frame in a cold region tunnel air curtain structure;

[0027] Figure 5 It is a front view of a nozzle in a cold region tunnel air curtain structure;

[0028] Figure 6 This is a schematic diagram of the structure of a block in a cold region tunnel air curtain structure;

[0029] Figure 7 for Figure 1 The enlarged structural diagram at A in the middle;

[0030] Figure 8 for Figure 7 The enlarged structural diagram at B in the middle;

[0031] Fig. 9 for Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0032] Description of main symbols:

[0033] 1. Tunnel body; 2. Cavity; 3. Fan; 4. Air duct 1; 5. Connecting pipe 1; 6. Air duct 2; 7. Connecting slot; 8. Mounting block; 9. Mounting slot; 10. Nozzle; 11. Clamping slot; 12. Connecting pipe 2; 13. Slider; 14. Clamping block; 15. Connecting spring; 16. Assembly slot; 17. Block; 18. Baffle 1; 19. Baffle 2; 20. Fixing plate 1; 21. Driving sleeve; 22. Loading slot; 23. Shell; 24. Connecting hole; 25. Closing block; 26. Rotating shaft; 27. Transmission block; 2 8. Adapter shaft; 29. ​​Support block; 30. Drive gear; 31. Rack plate 1; 32. Delivery pump; 33. Input pipe; 34. Connecting pipe; 35. Piston; 36. Connecting pipe 3; 37. Push plate; 38. Return spring; 39. Connecting rope; 40. Winding shaft; 41. Mounting frame; 42. Linking gear; 43. Rack plate 2; 44. Receiving tube; 45. Support plate; 46. Load-bearing plate; 47. Stabilizing plate; 48. Slot; 49. Snap-in block; 50. Linking shaft; 51. Snap-in groove; 52. Screw rod. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0035] Embodiment 1:

[0036] Combination Figure 1 and Figure 5A cold region tunnel wind curtain structure of the present embodiment comprises a tunnel body 1 and a cavity 2 opened in the tunnel body 1, a fan 3 is arranged on the outside of the tunnel body 1, an output end of the fan 3 is connected to an air duct 1 4, a tail end of the air duct 1 4 is connected to a connecting pipe 1 5, the connecting pipe 1 5 is provided with a plurality of connecting ports, the connecting ports are connected to a plurality of air ducts 2 6 connected to the cavity 2, a plurality of connecting grooves 7 are arranged on the inner wall between the tunnel body 1 and the cavity 2, a mounting block 8 is slidably connected inside the connecting groove 7, a mounting groove 9 is arranged on the mounting block 8, a nozzle 10 is rotatably connected inside the mounting groove 9, a connecting pipe 2 12 is installed at the end of the nozzle 10 located inside the tunnel body 1, and a protective component for protecting the nozzle 10 is arranged inside the tunnel body 1.

[0037] The implementation principle of a cold region tunnel wind curtain structure in the embodiment of the present application is: through the operation of the fan 3, the air is blown into the air duct 1 4, the airflow inside the air duct 1 4 is transported to the inside of the cavity 2 through the connecting pipe 1 5 and the air duct 2 6, the airflow is ejected through the nozzle 10 on the tunnel body 1 to form a wind curtain, and the connecting pipe 2 12 is moved. Through the rotation and cooperation of the nozzle 10 and the mounting groove 9, the nozzle 10 can be driven to deflect, and the corresponding angle of the nozzle 10 can be adjusted at this time.

[0038] Embodiment 2:

[0039] Combination Figure 2 , Figure 3 , Figure 6 and Figure 7The present embodiment is further improved on the basis of the embodiment 1 in that: the protection assembly includes a block 17 sliding inside the tunnel body 1, a plurality of baffles 18 are fixed on the outer side of the block 17, a baffle 2 19 fixed on the inner wall of the tunnel body 1 is provided on the outer side of the nozzle 10, a matching groove for slidingly matching with the baffle 1 18 is provided on the baffle 2 19, and the baffle 1 18 and the baffle 2 19 work in coordination, a driving sleeve 21 is fixed to the inner wall at both ends of the top of the block 17, a screw rod 52 is passed through the internal thread of the driving sleeve 21, a loading groove 22 is provided at the bottom of the tunnel body 1, and the internal fixing of the loading groove 22 There is a shell 23, the inner cavity of the shell 23 is a cylindrical structure, a plurality of connecting holes 24 are opened on the top of the shell 23, a closing block 25 for closing the connecting holes 24 is rotatably connected inside the shell 23, a rotating shaft 26 is rotatably connected inside the shell 23, a plurality of transmission blocks 27 fixed on the closing block 25 are fixed on the outer wall of the rotating shaft 26, a transfer shaft 28 is rotatably connected to the inner wall on one side of the bottom of the tunnel body 1, a transmission wheel is fixedly sleeved on the outer wall of the transfer shaft 28 and the outer wall of the rotating shaft 26, a transmission belt matched with the transmission wheel is provided on the outside of the transmission wheel, and a driving gear is fixedly sleeved on the outer wall of the transfer shaft 28 The outer side of the driving gear 30 is provided with a rack plate 131 meshing with the driving gear 30, and the outer side of the rack plate 131 is fixed with a plurality of transmission rods whose other ends are fixed on the stopper 17. When the nozzle 10 is idle, the stopper 17 can be driven to move by the rotation of the screw rod 52 and the cooperation of the screw rod 52 and the driving sleeve 21. When the stopper 17 blocks the outside of the nozzle 10, and the stopper 17, the baffle plate 18 and the baffle plate 29 cover the outside of the nozzle 10 to form a protective shell, the nozzle 10 can be protected by the protective shell formed at this time, and the tunnel body 1 can be connected through the connecting hole 24. The internal debris and dust are transported to the inside of the shell 23. When the connecting hole 24 needs to be closed, the rack plate 31 is displaced by the displacement of the stop block 17. When the displaced rack plate 31 contacts the driving gear 30, the driving gear 30 can be driven to rotate by the displaced rack plate 31, and the transfer shaft 28 can be driven to rotate. The transmission wheel and the transmission belt cooperate to drive the rotating shaft 26 to rotate, and the rotating rotating shaft 26 drives the closing block 25 to rotate. When the closing block 25 corresponds to the connecting hole 24, the connecting hole 24 can be closed by the closing block 25.

[0040] A fixing plate 20 is fixed to the top inner wall at one end of the tunnel body 1, and a fixing plate 2 is fixed to the top inner wall at the other end of the tunnel body 1. One end of the screw rod 52 is transmission-connected to a motor, which is a forward and reverse stepping motor. The motor is fixed on the fixing plate 2, and the other end of the screw rod 52 is rotationally connected to the fixing plate 20. The inner walls on both sides of the tunnel body 1 are provided with sliding grooves corresponding to the baffle 18. The end of the baffle 18 away from the block 17 slides inside the adjacent sliding groove. The operation of the motor can drive the screw rod 52 to rotate, and the baffle 18 can be supported and guided by the sliding groove, thereby improving the stability of the block 17.

[0041] Embodiment 3:

[0042] Combination Figure 8 On the basis of the first embodiment, the present embodiment is further improved in that: the inner walls at both ends of the connecting groove 7 are provided with assembly grooves 16, the interior of the assembly groove 16 is slidably connected with a slider 13, a block 14 is slidably penetrated in the notch of the assembly groove 16, and both ends of the mounting block 8 are provided with a slot 11, one end of the block 14 slides in the adjacent slot 11, and the other end of the block 14 is fixed on the adjacent slider 13, and a plurality of connecting springs 15 whose other ends are fixed on the inner wall of the end of the assembly groove 16 are fixed on the side of the slider 13 away from the block 14, and the block 14 is a trapezoidal structure, and the connecting pipe 12 is pulled, and the block 14 can be driven to move through the sliding cooperation of the block 14 and the slot 11. When the block 14 is separated from the slot 11 and enters the assembly slot 16, the nozzle 10 and the mounting block 8 are displaced. When the mounting block 8 is separated from the interior of the connecting groove 7, the nozzle 10 is removed from the wind curtain, and the staff can conveniently repair, maintain and replace the nozzle 10.

[0043] Embodiment 4:

[0044] Combination Figure 4 and Fig. 9On the basis of Example 2, this embodiment is further improved in that: a mounting frame 41 is provided on the outside of the tunnel body 1, a delivery pump 32 is fixed to the inner wall of one side of the mounting frame 41, an input end of the delivery pump 32 is connected to an input pipe 33 communicated with the shell 23, an output end of the delivery pump 32 is connected to an output pipe, an end of the output pipe away from the delivery pump 32 is connected to a connecting pipe 34 fixed on the inner wall of the mounting frame 41, a discharge pipe is installed on one side of the top of the connecting pipe 34, a connecting pipe 36 is connected to the tail end of the discharge pipe, the connecting pipe 36 is obliquely arranged inside the mounting frame 41, a bearing plate 46 is provided below the connecting pipe 36, a plurality of support plates 45 whose other ends are fixed on the bearing plate 46 are fixed to one side of the connecting pipe 36 close to the bearing plate 46, and the connecting pipe 36 is connected to the outer wall of the mounting frame 41. A plurality of mounting holes are provided at the bottom of 36, a receiving tube 44 is slidably inserted inside the mounting hole, a pushing plate 37 is slidably connected to the inside of the lower horizontal end of the connecting tube 36, a plurality of return springs 38 whose other ends are fixed to the push plate 37 are fixed to the inner wall of the lower horizontal end of the connecting tube 36, a winding shaft 40 rotatably connected to the inside of the mounting frame 41 is provided above the connecting tube 36, a connecting rope 39 is fixed to the side of the push plate 37 away from the return spring 38, the other end of the connecting rope 39 is fixed to the outer wall of the winding shaft 40, a piston 35 located between the output pipe and the discharge pipe is slidably connected to the inside of the connecting tube 34, a sliding hole is provided at the top of the connecting tube 34, a rack plate 2 43 fixed to the piston 35 is slidably inserted inside the sliding hole, the winding shaft 40 The outer wall of the receiving tube 44 is fixedly sleeved with a linkage gear 42 meshing with the rack plate 243, the bottom end of the receiving tube 44 is provided with a slot 48, the inside of the slot 48 is rotatably connected with a clamping block 49, and both sides of the clamping block 49 inside the slot 48 are fixed with linkage shafts 50 rotatably connected to the inner wall of the slot 48, and the side of the carrier plate 46 close to the clamping block 49 is provided with a plurality of clamping grooves 51 corresponding to the receiving tube 44, and the end of the clamping block 49 away from the receiving tube 44 is slidably inserted in the adjacent clamping grooves 51, and the racks on the rack plate 243 are arranged at intervals. Through the operation of the delivery pump 32, the input tube 33 can be driven to extract the debris inside the shell 23. At this time, the debris entering the input tube 33 will be transported to the connecting tube 34 and the discharge pipe by the delivery pump 32. The interior of the connecting pipe 36, at this time, the debris entering the connecting pipe 36 will enter the interior of the receiving pipe 44, and the debris will be received by the receiving pipe 44. When the debris enters the interior of the connecting pipe 34, it will push the piston 35 to move vertically. When the piston 35 moves vertically, it will drive the rack plate 2 43 to move vertically. At this time, the rack plate 2 43 and the linkage gear 42 can cooperate to drive the winding shaft 40 to rotate. At this time, the connecting rope 39 can be wound up by the rotating winding shaft 40, and the pushing plate 37 can be pulled to move. At this time, the displaced pushing plate 37 can push the debris inside the connecting pipe 36 into the interior of the receiving pipe 44, so as to prevent the debris inside the connecting pipe 36 from being trapped inside the connecting pipe 36.And it can make the sundries in the connecting tube 3 36 enter each receiving tube 44 evenly, so that the receiving tube 44 is filled with sundries. Since the racks on the rack plate 2 43 are arranged at intervals, when the racks on the rack plate 2 43 are separated from the linkage gear 42, the reset elasticity of the reset spring 38 will pull the push plate 37 to reset and move, so as to prevent the push plate 37 from interfering with the sundries in the connecting tube 3 36 entering the connecting tube 3 36. When the connecting tube 3 36 needs to be taken out, the receiving tube 44 can be pushed to drive the connecting tube 3 36 to be taken out. The receiving tube 44 is displaced vertically, driving the clamping block 49 to be displaced vertically. When the clamping block 49 is out of the clamping groove 51, the clamping block 49 can be pushed, and the linkage shaft 50 and the clamping block 49 can be deflected through the rotation of the linkage shaft 50. When the clamping block 49 and the receiving tube 44 are in a vertical state, the receiving tube 44 is pulled to drive the receiving tube 44 to be displaced vertically. When the receiving tube 44 is out of the connecting tube 36, the receiving tube 44 is pulled horizontally, and the corresponding receiving tube 44 can be detached from the mounting frame 41.

[0045] The connecting pipe 36 is provided with a sliding hole, and the connecting rope 39 slides inside the sliding hole. The connecting rope 39 can slide flexibly through the sliding hole.

[0046] Stabilizing plates 47 are fixed to both ends of the bearing plate 46 . The stabilizing plates 47 are fixed to the mounting frame 41 . The bearing plate 46 can be fixed to the mounting frame 41 through the stabilizing plates 47 .

[0047] The depth of the assembly groove 16 is greater than the length of the card block 14 . The card block 14 can be effectively accommodated by the assembly groove 16 whose depth is greater than the length of the card block 14 .

[0048] The other end of the transfer shaft 28 is rotatably connected to a support block 29 , which is fixed on the housing 23 . The transfer shaft 28 can be supported by the support block 29 , thereby improving the stability of the transfer shaft 28 .

[0049] A method for installing an air curtain structure in a cold region tunnel comprises the following steps:

[0050] S1: Fix the fan on the top of the tunnel body;

[0051] S2: Use air duct 1, connecting pipe 1 and air duct 2 to connect the fan to the cavity;

[0052] S3: Install the air curtain assembly on the tunnel body;

[0053] S4: Fixing the installation box on the outside of the tunnel body, and loading the installation frame and the components on the installation frame into the installation box;

[0054] S5: Test run the installed air curtain to ensure that it can operate normally.

[0055] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A cold region tunnel wind curtain structure, comprising a tunnel body and a cavity opened in the tunnel body, It is characterized in that A fan is provided on the outside of the tunnel body, the output end of the fan is connected to an air duct 1, the tail end of the air duct 1 is connected to a connecting pipe 1, the connecting pipe 1 is provided with a plurality of connecting ports, the connecting ports are connected to a plurality of air ducts 2 connected to the cavity, a plurality of connecting grooves are provided on the inner wall between the tunnel body and the cavity, a mounting block is slidably connected to the inside of the connecting groove, the mounting block is provided with a mounting groove, a nozzle is rotatably connected to the inside of the mounting groove, a connecting pipe 2 is installed at the end of the nozzle located inside the tunnel body, and a protective component for protecting the nozzle is provided in the tunnel body.

2. A cold region tunnel air curtain structure as claimed in claim 1, It is characterized in that The protection component includes a block sliding inside the tunnel body, a plurality of baffles 1 are fixed on the outside of the block, a baffle 2 fixed on the inner wall of the tunnel body is provided on the outside of the nozzle, the baffles 1 and 2 work in coordination, a driving sleeve is fixed to the inner walls at both ends of the top of the block, a screw rod is passed through the internal thread of the driving sleeve, a loading groove is provided at the bottom of the tunnel body, a shell is fixed inside the loading groove, the inner cavity of the shell is a cylindrical structure, a plurality of connecting holes are provided on the top of the shell, and a sealing member is rotatably connected inside the shell. A closing block for closing the communicating hole, a rotating shaft is rotatably connected inside the shell, a plurality of transmission blocks fixed on the closing block are fixed on the outer wall of the rotating shaft, a transfer shaft is rotatably connected to the inner wall on one side of the bottom of the tunnel body, a transmission wheel is fixedly sleeved on the outer wall of the transfer shaft and the outer wall of the rotating shaft, a transmission belt matched with the transmission wheel is provided on the outside of the transmission wheel, a driving gear is fixedly sleeved on the outer wall of the transfer shaft, a rack plate meshing with the driving gear is provided on the outer side of the driving gear, and a plurality of transmission rods whose other ends are fixed on the stopper are fixed on the outer side of the rack plate.

3. A cold region tunnel air curtain structure as claimed in claim 2, It is characterized in that A fixing plate 1 is fixed to the top inner wall at one end of the tunnel body, and a fixing plate 2 is fixed to the top inner wall at the other end of the tunnel body. One end of the screw rod is transmission-connected to a motor, and the motor is fixed on the fixing plate 2. The other end of the screw rod is rotatably connected to the fixing plate 1. The inner walls on both sides of the tunnel body are provided with sliding grooves corresponding to the baffle plate 1, and the end of the baffle plate 1 away from the block slides in the adjacent sliding groove.

4. A cold region tunnel air curtain structure as claimed in claim 2, It is characterized in that The inner walls at both ends of the connecting groove are provided with assembly grooves, and a slider is slidably connected to the inside of the assembly groove. A clamping block is slidably penetrated inside the notch of the assembly groove. Both ends of the mounting block are provided with clamping grooves, one end of the clamping block slides in the adjacent clamping groove, and the other end of the clamping block is fixed to the adjacent slider. A plurality of connecting springs are fixed on the side of the slider away from the clamping block, and the other end of the connecting springs is fixed to the inner wall of the end of the assembly groove.

5. The cold region tunnel air curtain structure as claimed in claim 2, It is characterized in that A mounting frame is provided on the outside of the tunnel body, a delivery pump is fixed on the inner wall of one side of the mounting frame, the input end of the delivery pump is connected to an input pipe communicated with the shell, the output end of the delivery pump is connected to an output pipe, the end of the output pipe away from the delivery pump is connected to a connecting pipe fixed on the inner wall of the mounting frame, a discharge pipe is installed on one side of the top of the connecting pipe, the tail end of the discharge pipe is connected to a connecting pipe three, the connecting pipe three is obliquely arranged inside the mounting frame, a bearing plate is provided below the connecting pipe three, a plurality of support plates are fixed on one side of the connecting pipe three close to the bearing plate, a plurality of mounting holes are provided at the bottom of the connecting pipe three, a receiving pipe is slidably inserted inside the mounting hole, a push plate is slidably connected inside the lower horizontal end of the connecting pipe three, and a plurality of support plates, the other end of which is fixed on the push plate, are fixed on the inner wall of the lower horizontal end of the connecting pipe three The top of the connecting tube is provided with a sliding hole, and a rack plate 2 fixedly provided with the piston is slidably inserted in the sliding hole. The outer wall of the sliding hole is fixedly sleeved with a linkage gear meshing with the rack plate 2, and the bottom end of the receiving tube is provided with a slot, and a clamping block is rotatably connected to the inside of the slot, and a linkage shaft rotatably connected to the inner wall of the slot is fixed on both sides of the clamping block located inside the slot, and a plurality of clamping grooves corresponding to the receiving tube are provided on the side of the supporting plate close to the clamping block, and the end of the clamping block away from the receiving tube is slidably inserted in the adjacent clamping groove.

6. A cold region tunnel air curtain structure as claimed in claim 5, It is characterized in that The racks on the rack plate 2 are arranged at intervals, the connecting pipe 3 is provided with a sliding hole, and the connecting rope slides inside the sliding hole.

7. The cold region tunnel air curtain structure as claimed in claim 5, It is characterized in that Stabilizing plates are fixed at both ends of the bearing plate, and the stabilizing plates are fixed on the mounting frame.

8. The cold region tunnel air curtain structure as claimed in claim 4, It is characterized in that The block is a trapezoidal structure, and the depth of the assembly groove is greater than the length of the block.

9. The cold region tunnel air curtain structure as claimed in claim 2, It is characterized in that The other end of the adapter shaft is rotatably connected to a support block, and the support block is fixed on the shell.

10. A method for installing a cold region tunnel air curtain structure according to claims 1 to 9, It is characterized in that The following steps are involved: S1: Fix the fan on the top of the tunnel body; S2: Use air duct 1, connecting pipe 1 and air duct 2 to connect the fan to the cavity; S3: Install the air curtain assembly on the tunnel body; S4: Fixing the installation box on the outside of the tunnel body, and loading the installation frame and the components on the installation frame into the installation box; S5: Test run the installed air curtain to ensure that it can operate normally.

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