High-gas long tunnel construction ventilation method

Abstract

The application belongs to the field of tunnel construction ventilation, and particularly relates to a high-gas long-tunnel construction ventilation method, which specifically comprises the following steps: S1: during tunnel excavation, a wind cylinder is fixedly arranged outside the tunnel, a servo motor in a winding box is started, a wind transmission pipe in an extruded winding state is extruded outwards, and a fan is started to rotate, so that external air is sent to the wind transmission pipe through the wind cylinder; and S2: an operator holds a handle to guide the running direction of a connecting cover and the wind transmission pipe, wind is filled into the wind transmission pipe, the front of the wind transmission pipe is continuously stretched, and through the arrangement, convenient tunnel ventilation effect is achieved, sparks generated by fan impact on the inside are avoided, the process of carrying the fan is reduced, safety is provided, the transportation process is reduced, and the wind transmission pipe can also be randomly produced through the inside-outside overturning arrangement of the wind transmission pipe, so that the length of the wind transmission pipe can be changed according to the tunnel construction.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of tunnel construction ventilation, and particularly relates to a high-gas long tunnel construction ventilation method. BACKGROUND

[0002] A tunnel is an engineering building embedded in a stratum, and is a form of human utilization of underground and mountain space. In order to ensure the safety of tunnel construction, effective ventilation equipment needs to be arranged to ensure air circulation in the tunnel during the construction process of some tunnels such as high-gas tunnels.

[0003] A tunnel ventilation system and a tunnel ventilation method are disclosed in a Chinese patent with the publication number CN108756989A, which comprises a drainage hole, a left line, a right line, a flat guide, a total air inlet lane, a total air return lane, a plurality of left cross passages and a plurality of right cross passages. The total air inlet lane is connected with the right line and the drainage hole, the total air return lane is connected with the left line, the left passage is connected with the flat guide and the left line, and the right passage is connected with the flat guide and the right line. The pressure of one-time long-distance ventilation is relieved, and the ventilation efficiency is improved.

[0004] Common tunnel ventilation methods are to place multiple groups of fans in the tunnel under construction. When the tunnel is long, not only the cost is high, but also since the fans are usually made of metal materials, sparks are easily generated during the process of moving and running, which leads to the phenomenon that the gas in the tunnel is ignited, and the safety is poor.

[0005] Therefore, the present application provides a high-gas long tunnel construction ventilation method. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve the technical problems is that the present application provides a high-gas long tunnel construction ventilation method, and the method specifically comprises the following steps:

[0008] S1: During the excavation of the tunnel, the air cylinder is fixed and placed outside the tunnel, the servo motor in the winding box is started, the air cylinder in the extrusion winding state is extruded and discharged outward, and at the same time, the fan is started to rotate, so that the external air is transported to the direction of the air cylinder through the air cylinder;

[0009] S2: The operator guides the running direction of the connecting cover and the air cylinder by hand, and the air cylinder continuously stretches forward as the wind force flows into the air cylinder. At the same time, the external air is transported to the tunnel through each through hole, so as to realize the ventilation effect;

[0010] S3: After each group of through holes is leaked, the fixed column is inserted into the two through holes from top to bottom, and a certain distance is reserved between the top end of the fixed column and the through hole during the fixing process;

[0011] Through the arrangement, convenient tunnel ventilation effect is achieved, meanwhile, the method does not generate sparks caused by fan impact on the inner side, and the process of carrying the fan is reduced, which not only provides safety, but also reduces the transportation process, and the inner and outer overturning arrangement of the air conveying pipe allows the air conveying pipe to be produced at will, and the length of the air conveying pipe can be changed according to the construction of the tunnel.

[0012] Preferably, the inner side of the air duct is fixedly connected with a fan, one end of the air duct away from the fan is fixedly connected with a connecting seat, the connecting seat away from the air duct is provided with an air conveying pipe, one end edge of the air conveying pipe is fixedly connected with the inner side wall of the connecting seat, the air conveying pipe is made of flexible material, a plurality of groups of through holes are formed in the outer side of the air conveying pipe, the outer side of the air duct is fixedly installed with a winding box, the inner side of the winding box is fixedly installed with a servo motor in the middle, the other end of the air conveying pipe is turned over and fixedly connected with the outer side of the output end of the servo motor, in work, the common tunnel ventilation method is to place a plurality of groups of fans in the constructed tunnel, when the tunnel is long, the cost is high, and since the fan is made of metal material, sparks are easily generated in the process of carrying and running, which causes the phenomenon that the gas in the tunnel is ignited, safety is poor, the arrangement of the air conveying pipe places the large fan for driving and the air duct outside the tunnel, and the air conveying pipe for air conveying is pulled into the tunnel, the air force is discharged outward through the through holes, so that convenient tunnel ventilation effect is achieved, meanwhile, the method does not generate sparks caused by fan impact on the inner side, and the process of carrying the fan is reduced, which not only provides safety, but also reduces the transportation process, and the inner and outer overturning arrangement of the air conveying pipe allows the air conveying pipe to be produced at will, and the length of the air conveying pipe can be changed according to the construction of the tunnel.

[0013] Preferably, the outer edge of the through hole is fixedly installed with a sleeve ring, the sleeve ring is made of flexible material, and a fixed column is arranged in each group of through holes, the top end of the fixed column is arranged in a flat shape, and the diameter of the top end of the fixed column is greater than the diameter of the through hole, and the bottom end of the fixed column is arranged in an acute angle shape, in work, as the air conveying pipe is continuously lengthened, the fixed column is inserted into two through holes from top to bottom after each group of through holes is leaked, and a certain distance is reserved between the top end of the fixed column and the through hole during the fixing process, through the arrangement, the air conveying pipe can be fixed, the problem of position deviation caused by the continuous peristalsis of the air conveying pipe under the action of air force is reduced, and the fixing process does not affect the process of the subsequent air conveying pipe extending outward, and the fixed column can be pulled out in order during recovery.

[0014] Preferably, the outer side of the servo motor drive end is fixedly connected with a center rope, the center rope is located in the middle of the air conveying pipe, the end of the center rope away from the servo motor is located on the outer side of the air conveying pipe, and the end is fixedly connected with a handle, during operation, the arrangement of the center rope makes the end of the air conveying pipe easy to move around during the extension of the air conveying pipe outward, and the center rope wrapped in the air conveying pipe in the unrolling state and not fixedly connected with the air conveying pipe makes the length of the air conveying pipe released by the servo motor always the same as the length of the center rope, and the center rope wrapped therein can guide the direction of the air conveying pipe through friction force, so that the operator can effectively guide the extension direction of the air conveying pipe by only holding the handle and walking forward, which is simple to operate and does not require much effort.

[0015] Preferably, the outer side of the center rope is fixedly connected with a connecting cover, the connecting cover is located on one side of the air conveying pipe, the outer side of the connecting cover is arranged in an arc shape, and the outer edge of the connecting cover is rotatably connected with a plurality of rolling balls, and the side of the connecting seat away from the fan is provided with a bayonet slot, during operation, the arrangement of the connecting cover makes the end of the air conveying pipe rub against the ground during the outward expansion and extension of the air conveying pipe, resulting in damage, and the arc-shaped arrangement of the connecting cover can cover the end of the air conveying pipe and drag the lower part of the extension of the air conveying pipe, so that the place where the air conveying pipe moves will always only contact the smooth inner side of the connecting cover, thereby greatly reducing the wear and damage of the air conveying pipe, and since the connecting cover and the center rope are connected together, the connecting cover is always located at the end of the air conveying pipe, without the need for deliberate adjustment, further facilitating the operation process.

[0016] Preferably, a plurality of groups of the penetrating holes are equidistantly arranged on the outer side of the air conveying pipe, the number of penetrating holes in each group is two, the two penetrating holes are arranged in an upper-lower symmetrical manner, and the two penetrating holes are located on one side of the middle part of the air conveying pipe, the inner side of the air duct is fixedly installed with two groups of positioning rings, and the middle part of the air conveying pipe penetrates through the middle part of the two positioning rings and is slidably connected with the positioning rings, during operation, the arrangement of the penetrating holes makes the fixed column be able to be inserted from top to bottom into the two penetrating holes when inserted, so as to ensure that it can be fixed in place, and since it is arranged on one side of the middle part, it will not affect the air conveying pipe in the unrolling state when inserted, and the arrangement of the positioning ring can make the air conveying pipe in the state of extending outward from the center, thereby improving the effect of the air conveying pipe extending forward.

[0017] Preferably, the inner side of the air duct is inserted with several metal ropes, the metal ropes are arranged in parallel with the air duct, the inner side of the connecting cover is fixedly provided with a magnet block, the magnet block is arranged in a ring shape, and during operation, the arrangement of the metal ropes can not only increase the strength of the air duct, but also be attracted by the magnet block, so that the end of the air duct is attracted by the magnet block, and when the air duct is extended outward, the moving part is close to the side wall of the connecting cover instead of the ground, thereby further ensuring the effect that the air duct is not in contact with the ground during extension, and the service life of the air duct is improved.

[0018] Preferably, the outer edge of the connecting cover is rotatably connected with several friction wheels, the outer edges of the two sides of the friction wheels are located on the inner and outer sides of the connecting cover, and the outer edge of the connecting cover is made of a magnet material. During operation, foreign matters such as soil on the outside are easily attached to the outside of the air duct during the winding process of the air duct, and the friction wheels are arranged, and as the air duct is wound, the connecting cover also moves close to the ground, thereby driving the friction wheels to rotate. The rotating friction wheels will continuously rub the outside of the air duct to remove a large amount of attached matters, thereby effectively reducing the problem that the attached matters are carried into the winding box, and the magnet material on the edge of the connecting cover and the magnet block can make the air duct always adhere to the side wall of the connecting cover, so that the friction wheels can fully rub the outside of the air duct, and the cleaning effect is improved.

[0019] Preferably, the inner side of the fixed column is hollow, a ball is rotatably connected to the middle part of the inner side of the fixed column, a long rod is arranged on the middle part of the inner side of the fixed column, the outer side of the bottom end of the long rod is fixedly connected with the ball, a cross rod is fixedly connected to the top end of the long rod, four groups of contact grooves are arranged on the outer side of the fixed column, the contact grooves are arranged in parallel with the cross rod, the four corners of the cross rod are slidably connected with the four groups of contact grooves, and the bottom end of the long rod is provided with a protruding assembly. The protruding assembly is used to protrude outward after the long rod is impacted. During operation, when the fixed column is fixed, the flexible air duct is easy to shake during ventilation, and the side wall of the fixed column is impacted during shaking, so that the cross rod above is deviated, thereby driving the long rod to deviate, and the protruding assembly is pushed out outward under the action of the lever, the connecting friction between the outer side of the fixed column and the ground is increased, the grip of the fixed column is improved, and the fixed column is not easily pulled out by the air duct.

[0020] Preferably, the outer side of the contact groove is fixedly connected with an extrusion pad, the extrusion pad is made of elastic material, the convex assembly comprises four groups of telescopic plates, the telescopic plates are slidably connected with the inner side of the fixed column, and the telescopic plates are located on one side of the bottom end of the long rod, a plurality of sharp spikes are fixedly connected to the outer side of the telescopic plates, and a pull rope is connected between the telescopic plates and the bottom end of the long rod.

[0021] The beneficial effects of the present application are as follows:

[0022] 1. The high-gas long tunnel construction ventilation method provided by the present application realizes convenient tunnel ventilation effect through the arrangement of the air transmission pipe and the through hole, the method does not produce sparks caused by fan impact on the inner side, reduces the process of carrying the fan, provides safety, reduces the transportation process, and cooperates with the inner and outer flip arrangement of the air transmission pipe, so that the air transmission pipe can be randomly produced and the length of the air transmission pipe can be changed according to the tunnel construction.

[0023] 2. The high-gas long tunnel construction ventilation method provided by the present application, through the arrangement of the fixed column, the air transmission pipe can be fixed, the problem of position deviation caused by continuous peristalsis of the air transmission pipe under the action of wind force is reduced, and the fixing process does not affect the subsequent process of the air transmission pipe extending outward, and when recycling, the fixed column only needs to be removed in sequence. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described below with reference to the drawings.

[0025] Figure 1 is a method block diagram of the present application;

[0026] Figures 2-3 is a perspective view of the present application;

[0027] Figures 2-3 is a sectional view in the present application;

[0028] Figures 2-3 is a structural schematic view of the connecting cover and the air transmission pipe in the present application;

[0029] Figures 2-3 is a sectional view of the fixed column in the present application;

[0030] In the diagram: 1. Air duct; 2. Connecting seat; 3. Air transmission duct; 4. Through hole; 5. Winding box; 6. Center rope; 7. Handle; 8. Connecting cover; 9. Ball; 10. Fixed column; 11. Fan; 12. Servo motor; 13. Positioning ring; 14. Metal rope; 15. Friction wheel; 16. Magnet; 17. Cross bar; 18. Extrusion pad; 19. Long rod; 20. Ball; 21. Telescopic plate. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1

[0033] like Figure 1 As shown in the embodiment of the present invention, a ventilation method for high-gas long tunnel construction is specifically described as follows:

[0034] S1: During the tunnel excavation process, the ventilation duct 1 is fixedly placed outside the tunnel, the servo motor 12 in the winding box 5 is started, and the compressed and wound air pipe 3 is pushed outward. At the same time, the fan 11 is started to rotate, and the external air is transported through the ventilation duct 1 to the direction of the air pipe 3.

[0035] S2: The operator holds the handle 7 to guide the direction of the connecting cover 8 and the air transmission pipe 3. As the wind flows into the air transmission pipe 3, the front of the air transmission pipe 3 extends continuously. At the same time, outside air is delivered to the tunnel through each through hole 4 to achieve the ventilation effect.

[0036] S3: After each set of through holes 4 is exposed, insert the fixing post 10 into the two through holes 4 from top to bottom. During the fixing process, a certain distance needs to be reserved between the top of the fixing post 10 and the through hole 4.

[0037] This design achieves convenient tunnel ventilation. At the same time, this method does not generate sparks from the impact of the fan 11 on the inside, and also reduces the process of transporting the fan 11. It not only provides safety but also reduces the transportation process. In addition, the internal and external flip-type design of the air transmission pipe 3 allows the air transmission pipe 3 to be produced at will and its length can be changed according to the tunnel construction.

[0038] like Figures 2-3As shown, the inner side of the wind cylinder 1 is fixedly connected with a fan 11, one end of the wind cylinder 1 away from the fan 11 is fixedly connected with a connecting seat 2, one end of the connecting seat 2 away from the wind cylinder 1 is provided with a wind conveying pipe 3, one end edge of the wind conveying pipe 3 is fixedly connected with the inner side wall of the connecting seat 2, the wind conveying pipe 3 is made of flexible material, a plurality of groups of through holes 4 are formed in the outer side of the wind conveying pipe 3, the outer side of the wind cylinder 1 is fixedly installed with a winding box 5, the inner side of the middle part of the winding box 5 is fixedly installed with a servo motor 12, the other end of the wind conveying pipe 3 is turned inside and outside and is fixedly connected with the outer side of the output end of the servo motor 12, in working, the common tunnel ventilation method is to place a plurality of groups of fans 11 in the constructed tunnel, when the tunnel is long, not only the cost is high, but also since the fan 11 is mostly made of metal material, sparks are easily generated in the process of carrying and running, the phenomenon that the gas in the tunnel is ignited is caused, the safety is poor, the setting of the wind conveying pipe 3 is matched, the large fan 11 for driving and the wind cylinder 1 are placed outside the tunnel, the wind conveying pipe 3 for conveying wind is pulled into the tunnel, the wind force is discharged outwardly through the through holes 4, so that the convenient tunnel ventilation effect is realized, at the same time, this method will not generate sparks generated by the impact of the fan 11 on the inner side, the process of carrying the fan 11 is also reduced, not only the safety is provided, but also the transportation process is reduced, and the inside and outside turning type setting of the wind conveying pipe 3 is matched, as the tunnel is continuously lengthened, only the servo motor 12 is started to rotate, the wind conveying pipe 3 will be elongated outwardly under the action of the wind force, at the same time, after the use is finished, the servo motor 12 can also be reversely rotated, the operation of the fan 11 is maintained, the wind conveying pipe 3 can be neatly wound, and the effect of repeated use is realized.

[0039] As shown in the figure, Figures 2-3 The outer edge of the through hole 4 is fixedly installed with a sleeve ring, the sleeve ring is made of flexible material, a fixed column 10 is arranged in each group of through holes 4, the top end of the fixed column 10 is arranged in a flat shape, and the diameter of the top end of the fixed column 10 is greater than the diameter of the through hole 4, the bottom end of the fixed column 10 is arranged in an acute angle shape, in working, as the wind conveying pipe 3 is continuously lengthened, the fixed column 10 is inserted into two through holes 4 from top to bottom after each group of through holes 4 is leaked, a part of distance needs to be reserved between the top end of the fixed column 10 and the through hole 4 in the fixing process, through this setting, not only the wind conveying pipe 3 can be fixed, the problem that the position of the wind conveying pipe 3 is deviated due to the continuous peristalsis under the action of the wind force is reduced, and the fixing process will not affect the process that the subsequent wind conveying pipe 3 is stretched outwards, when the wind conveying pipe 3 is recovered, the fixed column 10 can be pulled out in order.

[0040] As shown in the figure, Figures 2-3As shown, the outer side of the transmission end of the servo motor 12 is fixedly connected with a center rope 6, the center rope 6 is located in the middle of the air conveying pipe 3, the end of the center rope 6 away from the servo motor 12 is located on the outer side of the air conveying pipe 3, and the end is fixedly connected with a handle 7, during operation, cooperating with the arrangement of the center rope 6, the end of the air conveying pipe 3 is easy to go around during the process of extending outward, and the center rope 6 is always wrapped in the air conveying pipe 3 in the reverse winding state and is not fixedly connected with the air conveying pipe 3, so that the length of the air conveying pipe 3 released by the servo motor 12 is always the same as the length of the center rope 6, and the center rope 6 wrapped therein can guide the direction of the air conveying pipe 3 through the friction force, only the operator needs to hold the handle 7 and walk forward, so that the extension direction of the air conveying pipe 3 can be effectively guided, which is not only simple to operate, but also can be done without consuming much effort.

[0041] As shown in Figures 3-4 The outer side of the center rope 6 is fixedly connected with a connecting cover 8, the connecting cover 8 is located on one side of the air conveying pipe 3, the outer side of the connecting cover 8 is arranged in an arc shape, and the outer edge of the connecting cover 8 is rotatably connected with a plurality of rolling balls 9, and the side of the connecting seat 2 away from the fan 11 is provided with a bayonet slot, during operation, cooperating with the arrangement of the connecting cover 8, the end of the air conveying pipe 3 will be rubbed with the ground during the process of outwardly expanding and extending, which will cause damage, and the arc-shaped arrangement of the connecting cover 8 can cover the end of the air conveying pipe 3 and drag the lower part of the extension of the air conveying pipe 3, so that the place where the air conveying pipe 3 moves will always only contact the smooth inner side of the connecting cover 8, thereby greatly reducing the wear and damage of the air conveying pipe 3, and since the connecting cover 8 and the center rope 6 are connected together, the connecting cover 8 is always located at the end of the air conveying pipe 3, without the need for deliberate adjustment, further facilitating the operation process.

[0042] As shown in Figures 3-4 A plurality of groups of the penetrating holes 4 are arranged at equal intervals on the outer side of the air conveying pipe 3, the number of each group of penetrating holes 4 is two, the two penetrating holes 4 are arranged in an upper-lower symmetric manner, and the two penetrating holes 4 are located on one side of the middle part of the air conveying pipe 3, the inner side of the air duct 1 is fixedly installed with two groups of positioning rings 13, and the middle part of the air conveying pipe 3 penetrates through the middle part of the two positioning rings 13 and is slidably connected with the positioning rings 13, during operation, cooperating with the arrangement of the penetrating holes 4, so that the fixed column 10 can be inserted from top to bottom when inserted, which can be fixed in place, and since it is arranged on one side of the middle part, it will not affect the middle part of the air conveying pipe 3 in the reverse winding state when inserted, and the arrangement of the positioning ring 13 can make the air conveying pipe 3 in the state of extending outward from the center, thereby improving the effect of the air conveying pipe 3 extending forward.

[0043] As shown in Figures 3-4As shown, the inner side of the air duct 3 is inserted with several metal ropes 14, which are arranged in parallel with the air duct 3, the inner side of the connecting cover 8 is fixedly installed with a magnet block 16, which is arranged in a ring shape, in operation, the arrangement of the metal rope 14 can not only increase the strength of the air duct 3, but also be attracted by the magnet block 16, so that the end of the air duct 3 is attracted by the magnet block 16, and when the air duct 3 is extended outward, the moving part is close to the side wall of the connecting cover 8 instead of the ground, thereby further ensuring that the air duct 3 is not in contact with the ground when it is extended, and improving the service life of the air duct 3.

[0044] As shown in Figures 3-4 The outer edge of the connecting cover 8 is rotatably connected with several friction wheels 15, the outer edges of the two sides of the friction wheel 15 are located on the inner and outer sides of the connecting cover 8, and the outer edge of the connecting cover 8 is made of a magnet material, in operation, during the winding process of the air duct 3, foreign matters such as soil outside are easily attached to the outer side of the air duct 3, cooperating with the arrangement of the friction wheel 15, as the air duct 3 is wound, the connecting cover 8 is also moved close to the ground, thereby driving the friction wheel 15 to rotate, the rotating friction wheel 15 will continuously rub the outer side of the air duct 3, removing a large amount of attached matters, thereby effectively reducing the problem that the attached matters are carried into the winding box 5, and the magnet material on the edge of the connecting cover 8 plus the magnet block 16 will make the air duct 3 always adhere to the side wall of the connecting cover 8, so that the friction wheel 15 can fully rub the outer side of the air duct 3, improving the cleaning effect.

[0045] Example two

[0046] As shown in Figure 5 Comparative example one, another embodiment of the present application is that: the inner side of the fixed column 10 is hollow, the middle part of the inner side of the fixed column 10 is rotatably connected with a ball 20, the middle part of the inner side of the fixed column 10 is provided with a long rod 19, the outer side of the bottom end of the long rod 19 is fixedly connected with the ball 20, the top end of the long rod 19 is fixedly connected with a cross rod 17, four groups of contact grooves are formed in the outer side of the fixed column 10, the contact grooves are arranged in parallel with the cross rod 17, the four corners of the cross rod 17 are slidably connected with the four groups of contact grooves, the bottom end of the long rod 19 is provided with a protruding assembly, which is used to protrude outward after the long rod 19 is impacted, in operation, when the fixed column 10 is fixed, the flexible air duct 3 is easy to shake during ventilation, and the shaking process will impact the side wall of the fixed column 10, so that the upper cross rod 17 is offset, thereby driving the long rod 19 to be offset, and under the action of the lever, the protruding assembly is pushed outwards, which can increase the connection friction between the outer side of the fixed column 10 and the ground, improve the grip of the fixed column 10, and the fixed column 10 will not be easily pulled out by the air duct 3.

[0047] The outside of the contact groove is fixedly connected with an extrusion pad 18, the extrusion pad 18 is made of elastic material, the convex assembly comprises four groups of telescopic plates 21, the telescopic plates 21 are slidably connected with the inside of the fixed column 10, and the telescopic plates 21 are located on one side of the bottom end of the long rod 19, the outside of the telescopic plates 21 is fixedly connected with a plurality of sharp spikes, and the bottom end between the telescopic plates 21 and the long rod 19 is connected with a pull rope, when working, the setting of the extrusion pad 18 can reduce the foreign matters entering into the inside of the fixed column 10, and the cooperation of the telescopic plates 21 and the sharp spikes can effectively hold the soil and increase the temporary grip, when the fixed column 10 needs to be pulled out, the telescopic plates 21 are pulled back to the middle by the pull rope, so that the fixed column 10 can be pulled out more easily.

[0048] In operation, the common tunnel ventilation method is to place multiple sets of fans 11 in the tunnel under construction. When the tunnel is long, not only is the cost high, but also since the fans 11 are mostly made of metal materials, sparks are easily generated during the handling and operation process, which leads to the phenomenon that the gas in the tunnel is ignited, and the safety is poor. In cooperation with the setting of the air transmission pipe 3, the large fan 11 for driving and the air cylinder 1 are placed outside the tunnel, the air transmission pipe 3 for air transmission is pulled into the tunnel, the air force is discharged outwardly through the through holes 4, so that the convenient tunnel ventilation effect is realized. At the same time, this method will not generate sparks generated by the impact of the fan 11 on the inside, and also reduces the process of handling the fan 11, which not only provides safety, but also reduces the transportation process. In cooperation with the inside-outside reverse setting of the air transmission pipe 3, as the tunnel is continuously lengthened, only the servo motor 12 needs to be started to rotate, and the air transmission pipe 3 will be lengthened outwardly under the action of the air force. At the same time, after use, the servo motor 12 can also be reversely rotated while maintaining the operation of the fan 11, so that the air transmission pipe 3 can be neatly rolled, realizing the effect of repeated use. In operation, as the air transmission pipe 3 is continuously lengthened, after each set of through holes 4 is leaked, the fixed column 10 is inserted into the two through holes 4 from top to bottom. During the fixing process, a certain distance needs to be reserved between the top end of the fixed column 10 and the through hole 4. Through this setting, not only can the air transmission pipe 3 be fixed to reduce the problem of position deviation caused by the continuous peristalsis of the air transmission pipe 3 under the action of the air force, but also the fixing process will not affect the subsequent process of the air transmission pipe 3 extending outwardly. When recycling, only the fixed column 10 needs to be removed in order. In operation, in cooperation with the setting of the center rope 6, the end of the air transmission pipe 3 is easy to walk around during the process of the air transmission pipe 3 extending outwardly. Since the center rope 6 is always wrapped in the air transmission pipe 3 in the reverse rolling state and is not fixedly connected with the air transmission pipe 3, the length of the air transmission pipe 3 released by the servo motor 12 is always the same as the length of the center rope 6. The center rope 6 wrapped therein can guide the direction of the air transmission pipe 3 through the friction force. Only the operator needs to hold the handle 7 and walk forward, which can effectively guide the extension direction of the air transmission pipe 3. Not only is the operation simple, but also it can be done without consuming much effort. In operation, in cooperation with the setting of the connecting cover 8, the end of the air transmission pipe 3 will be rubbed with the ground during the process of the air transmission pipe 3 extending outwardly. The arc-shaped setting of the connecting cover 8 can cover the end of the air transmission pipe 3 and drag the lower part of the extension of the air transmission pipe 3, so that the place where the air transmission pipe 3 moves will always only contact the smooth inside of the connecting cover 8, thereby greatly reducing the wear and tear of the air transmission pipe 3. Since the connecting cover 8 and the center rope 6 are connected together, the connecting cover 8 is always at the end of the air transmission pipe 3, without the need for deliberate adjustment, which further facilitates the operation process.When working, the arrangement of the through holes 4 is such that the fixing column 10 can be inserted into two through holes 4 from top to bottom when inserted, so as to be fixed in place, and because it is arranged on one side of the middle part, it will not affect the wind pipe 3 in the winding state when inserted, and the arrangement of the positioning ring 13 can make the wind pipe 3 extend outward from the center, thereby improving the effect of the wind pipe 3 extending forward; when working, the arrangement of the metal rope 14 can not only increase the strength of the wind pipe 3, but also be attracted by the magnet block 16, so that the end of the wind pipe 3 is attracted by the magnet block 16, and when the wind pipe 3 extends outward, the moving part is close to the side wall of the connecting cover 8, instead of close to the ground, thereby further ensuring that the wind pipe 3 does not contact the ground when extending, and improving the service life of the wind pipe 3; when working, during the winding process of the wind pipe 3, foreign matters such as soil outside are easy to adhere to the outside of the wind pipe 3, and the arrangement of the friction wheel 15 is matched, so that the connecting cover 8 is still moving close to the ground during the winding of the wind pipe 3, thereby driving the friction wheel 15 to rotate, and the rotating friction wheel 15 will continuously rub the outside of the wind pipe 3, thereby removing a large amount of adhering matters, thereby effectively reducing the problem that the adhering matters are carried into the winding box 5, and the magnet material on the edge of the connecting cover 8 and the magnet block 16 can make the wind pipe 3 always adhere to the side wall of the connecting cover 8, so that the friction wheel 15 can fully rub the outside of the wind pipe 3, thereby improving the cleaning effect.

[0049] The above, front, back, left, right, up and down are based on the observation angle of the person in the drawings of the specification Figure 2 The front of the device is defined as the front, the left side of the observer is defined as the left, and the like.

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0051] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high gas long tunnel construction ventilation method, characterized by: The method is specifically: S1: during tunnel excavation, the air duct (1) is fixed outside the tunnel, the servo motor (12) in the winding box (5) is started, the air duct (3) in the extrusion winding state is extruded outside, and the fan (11) is started to rotate, so that the external air is transported to the direction of the air duct (3) through the air duct (1); S2: the operator guides the connection cover (8) and the air duct (3) by holding the handle (7), and the air duct (3) is continuously stretched in front of the air duct (3) as the air force is filled into the air duct (3), and the external air is transported to the tunnel through each through hole (4), so that the ventilation effect is realized; S3: after a group of through holes (4) are leaked, the fixed column (10) is inserted into two through holes (4) from top to bottom, and a distance is reserved between the top end of the fixed column (10) and the through hole (4) during the fixing process; The inner side of the air duct (1) is fixedly connected with the fan (11), one end of the air duct (1) away from the fan (11) is fixedly connected with the connecting seat (2), one end of the connecting seat (2) away from the air duct (1) is provided with the air duct (3), one end edge of the air duct (3) is fixedly connected with the inner side wall of the connecting seat (2), the air duct (3) is made of flexible material, a plurality of groups of through holes (4) are formed in the outer side of the air duct (3), the outer side of the air duct (1) is fixedly installed with the winding box (5), the inner side of the winding box (5) is fixedly installed with the servo motor (12), the other end of the air duct (3) is turned inside and outside and is fixedly connected with the outer side of the output end of the servo motor (12); The outer edge of the through hole (4) is fixedly installed with a sleeve ring, the sleeve ring is made of flexible material, each group of through holes (4) is provided with a fixed column (10), the top end of the fixed column (10) is flatly arranged, and the diameter of the top end of the fixed column (10) is greater than the diameter of the through hole (4), and the bottom end of the fixed column (10) is arranged in an acute angle shape; The outer side of the transmission end of the servo motor (12) is fixedly connected with the center rope (6), the center rope (6) is located in the middle of the air duct (3), one end of the center rope (6) away from the servo motor (12) is located on the outer side of the air duct (3), and the end is fixedly connected with the handle (7); The outer side of the center rope (6) is fixedly connected with the connecting cover (8), the connecting cover (8) is located on one side of the air duct (3), the outer side of the connecting cover (8) is arranged in an arc shape, and the outer edge of the connecting cover (8) is rotatably connected with a plurality of rolling balls (9), and the side of the connecting seat (2) away from the fan (11) is provided with a bayonet slot.

2. The high-gas long tunnel construction ventilation method according to claim 1, characterized in that: A plurality of groups of through holes (4) are arranged at equal distances on the outer side of the air duct (3), the number of each group of through holes (4) is two, the two through holes (4) are symmetrically arranged above and below, and the two through holes (4) are located on one side of the middle of the air duct (3), the inner side of the air duct (1) is fixedly installed with two groups of positioning rings (13), and the middle of the air duct (3) penetrates through the middle of the two positioning rings (13) and is slidably connected with the positioning rings (13).

3. The high-gas long tunnel construction ventilation method according to claim 2, characterized in that: The inside of the air duct (3) is inserted with several metal ropes (14), the metal ropes (14) are arranged in parallel with the air duct (3), the inside of the connecting cover (8) is fixedly installed with a magnet block (16), and the magnet block (16) is arranged in a ring shape.

4. The high-gas long tunnel construction ventilation method according to claim 3, characterized in that: The outer edge of the connecting cover (8) is rotationally connected with several friction wheels (15), the outer edges of the two sides of the friction wheels (15) are located on the inner and outer sides of the connecting cover (8), and the outer edge of the connecting cover (8) is made of a magnet material.

5. The high gas long tunnel construction ventilation method according to claim 4, characterized in that: The inside of the fixed column (10) is hollow, a ball (20) is rotationally connected to the middle part of the inside of the fixed column (10), a long rod (19) is arranged on the inside of the fixed column (10), the bottom end of the outside of the long rod (19) is fixedly connected with the ball (20), the top end of the long rod (19) is fixedly connected with a cross rod (17), four groups of contact grooves are arranged on the outside of the fixed column (10) and are arranged in parallel with the cross rod (17), the four corners of the cross rod (17) are slidably connected with the four groups of contact grooves, the bottom end of the long rod (19) is provided with a protruding assembly, and the protruding assembly is used for protruding outward after the long rod (19) is impacted.

6. The high-gas long tunnel construction ventilation method according to claim 5, characterized in that: The outside of the contact groove is fixedly connected with a pressing pad (18), the pressing pad (18) is made of an elastic material, the protruding assembly comprises four groups of telescopic plates (21), the telescopic plates (21) are slidably connected with the inside of the fixed column (10), one side of the bottom end of the long rod (19) is located on the telescopic plate (21), the outside of the telescopic plate (21) is fixedly connected with several sharp spikes, and the telescopic plate (21) and the bottom end of the long rod (19) are connected with a pull rope.

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