Stable deslagging device and method for small-section tunnel

Abstract

The invention belongs to the technical field of tunnel excavation deslagging, and particularly relates to a stable deslagging device and method for a small-section tunnel, the stable deslagging device comprises a conveying assembly and a leveling assembly, the conveying assembly comprises two cross beams, a plurality of side-by-side rotating shafts are rotatably connected between the two cross beams, a conveying belt surrounds the multiple rotating shafts, a motor is fixedly connected to one cross beam, and the motor is fixedly connected to the other cross beam; the rotating shaft located at the end is in transmission connection with a motor, the face, opposite to the rotating shaft, of the cross beam is fixedly connected with a fixing disc, and the fixing disc is rotationally connected with one end of the supporting foot and can clamp rotation of the supporting foot. The deslagging device can be stably placed in a bumpy tunnel, soil and stones are prevented from falling during deslagging, and the deslagging efficiency is improved; falling slag stones are prevented from blocking the tunnel, and the construction safety is enhanced; the accuracy and the efficiency of splicing the plurality of conveying belts can be improved; and the conveying assembly can be conveniently carried into a small-section tunnel with a small space.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tunnel excavation and residue removal, and particularly relates to a stable residue removal device and method for small-section tunnels. BACKGROUND

[0002] The most widely used excavation method in tunnel and underground engineering construction is the drill-and-blast method, the core principle of which is to break rock mass through drilling, charging and blasting. A large amount of debris and spoil will be produced during the drilling and blasting process, and residue removal and support are required, and the cycle operation gradually pushes the tunnel forward. Residue removal technology is one of the core links in tunnel engineering construction, which is directly related to the speed, efficiency and cost of tunnel excavation.

[0003] A patent with the application number 202420643270.3 discloses an expanded tunnel rapid residue removal and transportation device, which comprises a rack arranged outside the tunnel, a first conveying module arranged on the rack and suitable for conveying soil residue, and a plurality of second conveying modules connected in sequence to extend into the tunnel, one of which is connected with the first conveying module. The plurality of second conveying modules are suitable for conveying the soil residue in the tunnel to the first conveying module to convey the soil residue outside the tunnel. The expanded tunnel rapid residue removal and transportation device can extend the plurality of second conveying modules into the tunnel, facilitate the conveying of the soil residue in the tunnel to the first conveying module, and then facilitate the conveying of the soil residue outside the tunnel. Meanwhile, the number of the second conveying modules can be increased according to the expanded depth to adapt to expanded tunnels of various lengths.

[0004] In the existing tunnel excavation and residue removal technology, especially in the construction and residue removal process of small-section tunnels, a device similar to a conveying belt is usually continuously arranged in the tunnel, and then the soil residue and debris at the innermost part of the tunnel are shoveled onto the conveying belt and transported outside the tunnel, which has the advantage of fast residue removal speed. However, since the tunnel is pushed forward by blasting and breaking rock mass, the ground in the tunnel during the construction stage is extremely rugged and uneven, and is accompanied by low-lying pits. It is difficult to place the residue conveying equipment in the tunnel. The inclined placement of the conveying device will cause the output residue and debris to easily slide down, and in severe cases, even accumulate and fall in one place to block the tunnel entrance, causing serious safety accidents. Moreover, the residue removal operation requires the splicing of multiple conveying belts, and in the rugged and complex tunnel, the movement of the conveying device on the ground is hindered, the conveying belt plane is easily changed during docking, the splicing is difficult, and the splicing precision and efficiency are low. At the same time, the small-section tunnel has a small entrance space, and it is difficult to move and install the conveying device. SUMMARY

[0005] In order to solve the problems in the prior art, the present application provides a stable type of slag discharging device for a small-section tunnel, which can effectively improve the portability of the transmission assembly by using rotatable supporting legs as the support of the transmission assembly, so that workers can more conveniently carry the transmission assembly into a small-section tunnel with small space for installation and leveling.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: The stable type of slag discharging device for a small-section tunnel comprises a transmission assembly and a leveling assembly, the transmission assembly comprises two cross beams, a plurality of parallel rotating shafts are rotatably connected between the two cross beams, a conveying belt is wound around the rotating shafts, a motor is fixedly connected to one of the cross beams, one of the rotating shafts at the end is drivingly connected to the motor, a fixed disc is fixedly connected to the side of the cross beam away from the rotating shafts, and the fixed disc is rotatably connected to one end of a supporting leg and can block the rotation of the supporting leg.

[0007] Further, a plurality of holes are circumferentially formed in the side of the pulley close to the clamping block, and the side of the clamping block facing the pulley is provided with a through hole, and the clamping pin can be inserted into the through hole of the clamping block and the hole of the pulley at the same time.

[0008] Further, the leveling assembly comprises a plurality of handles, one end of each handle is rotatably connected to the mounting bar and fixedly connected to the center of the corresponding pulley.

[0009] Further, a plurality of fixing holes are circumferentially formed in the surface of the fixed disc, and a fixing pin can be inserted into the fixing hole.

[0010] Further, the center of each fixed disc is rotatably connected to at least two supporting legs, and the fixing pin inserted into the selected fixing hole can block the rotation of the supporting leg.

[0011] Further, the crossbeam is fixedly connected with a fixing ring near each end, and the fixing ring is wound with the fixed rope away from the crossbeam.

[0012] Further, the crossbeam is provided with a convex connecting part at one end and a concave connecting part at the other end, and the convex connecting part of one crossbeam can be spliced with the concave connecting part of another crossbeam.

[0013] Further, the leveling assembly comprises a crossframe and a plurality of fixing strips, the two ends of the crossframe are respectively abutted against two vertical frames, and the two ends of the fixing strip are respectively detachably connected to the side surface of the vertical frame and the side surface of the crossframe.

[0014] Further, the mounting strip comprises a strip body, the middle part of the strip body is fixedly connected with an upper connecting part and a side connecting part, the side connecting part is fixedly connected with the top of the vertical frame, and the side connecting part is fixedly connected with the side surface of the vertical frame.

[0015] The application also claims a working method of the stable type slag discharge device using the small-section tunnel, comprising the following steps: S101: rotating the feet at the four corners of the transmission assembly towards the ground to support the transmission assembly on the ground of the tunnel; S102: standing two vertical frames on the two sides of the transmission assembly respectively, and tying four ropes respectively at the ends of the corresponding crossbeams; S103: rotating the four pulleys to make the ropes pull the four corners of the transmission assembly to adjust the angle of the rotating shaft and the plane where the conveying belt is located, until the pulleys are clamped to stop rotating when the plane is parallel to the horizontal plane; S104: rotating the feet again until each foot is abutted against the ground of the tunnel, and the rotation of the feet is clamped; S105: disconnecting each rope from the crossbeam, removing the vertical frames on the two sides of the transmission assembly, and moving the leveling assembly to the next adjacent transmission assembly to continue the leveling operation.

[0016] Compared with the prior art, the application has the following beneficial effects: (1) The present application can stably place the soil and rock out transmission device even in a rough tunnel, first rotate the supporting legs on the transmission assembly, then insert the fixing pin in the fixing hole on the fixing disc to lock the rotation of the supporting legs, thereby realizing the preliminary fixing of the transmission assembly, then tie the rope of the leveling assembly to the fixing ring of the cross beam, stretch the rope by manually shaking the handle of the pulley, adjust the inclination of the four corners of the transmission assembly, until the plane composed of the rotating shaft and the conveyor belt is parallel to the horizontal plane, insert the clamping pin into the perforation of the clamping block and the hole of the pulley at the same time, thereby locking and limiting the rotation of the pulley, finally pull out the fixing pin in the fixing hole on the fixing disc, rotate and adjust the supporting legs, and then insert the fixing pin to lock the supporting legs after each supporting leg is in contact with the ground of the tunnel, the leveled transmission assembly is stably placed in the tunnel, avoiding the scattering of rocks and soil from the conveyor device when the soil is discharged outside the tunnel, and the height of the supporting leg is adjusted without repeated adjustment of the individual corners of the transmission assembly, improving the leveling efficiency of the transmission device and the efficiency of the soil discharge construction.

[0017] (2) The present application adjusts the inclination of the four corners of the transmission assembly by rotating the supporting legs to preliminarily fix the transmission assembly, then stretching the length of the rope by cooperating with the leveling assembly, realizes that the plane composed of the rotating shaft and the conveyor belt can keep parallel to the horizontal plane, locks and limits the rotation of the pulley by the clamping block, finally rotates and adjusts the supporting legs again, and locks the supporting legs after each supporting leg is in contact with the ground of the tunnel, so that the leveled transmission assembly can be stably and stably placed on the working ground in the tunnel for soil discharge operation, thereby avoiding the tilting placement of the transmission device to cause the soil and rocks to slide when conveying the soil and rocks outside the tunnel, preventing the accumulation of soil and rocks scattered in one place of the transmission line from blocking the tunnel entrance and causing serious safety accidents, greatly enhancing the safety of the soil discharge construction process of the small cross-section tunnel.

[0018] (3) The present application can improve the accuracy and efficiency of the splicing of multiple transmission belts, after leveling the stable placement of a transmission assembly by using the leveling assembly, the leveling and splicing operation is performed again on the adjacent another transmission assembly, after the transmission belt of another transmission assembly is leveled to be parallel to the horizontal plane, the convex connecting part of one cross beam is first spliced with the concave connecting part of another cross beam to realize the splicing of the two transmission assemblies, and finally the height of the supporting leg of another transmission assembly is adjusted, so that when splicing in the horizontal direction, the entire transmission assembly is suspended by the rope, the supporting leg does not touch the ground, and the conveyor belt does not move horizontally due to the friction of the ground, and the adjusted height does not change after the movement is completed, so that the worker can easily and accurately realize the butt joint of the convex connecting part and the concave connecting part, thereby improving the accuracy and efficiency of the splicing operation.

[0019] (4) The slag conveying device can effectively improve the portability, the rotatable supporting legs are used as the support of the conveying assembly, when the conveying assembly is carried to the construction section in the small-section tunnel, the supporting legs are rotated to make the length direction of the supporting legs consistent with the length direction of the cross beam, and the fixed pins are inserted into the fixed holes on the fixed disc to clamp the rotation of the supporting legs, so that the occupied space is reduced, and the carrying becomes more convenient; moreover, the main frame of the leveling assembly is composed of two vertical frames and a horizontal frame, the horizontal frame and the vertical frame can be carried side by side after being disassembled, the efficiency of leveling multiple conveying assemblies is improved, and the space during carrying can be saved; through the space-saving design of the conveying assembly and the leveling assembly, the workers can conveniently and efficiently carry the slag discharge device to the working section even in the small-section tunnel with small space. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the stable slag discharge device for a small-section tunnel of the present application; Figure 2 It is a leveling assembly structure schematic view of the stable slag discharge device for a small-section tunnel of the present application; Figure 3 It is a conveying assembly structure schematic view of the stable slag discharge device for a small-section tunnel of the present application; Figure 4 It is a local structure schematic view of the stable slag discharge device for a small-section tunnel of the present application Figure 1 ; Figure 5 It is a local structure schematic view of the stable slag discharge device for a small-section tunnel of the present application Figure 2 ; Figure 6 It is a multiple conveying assembly splicing schematic view of the stable slag discharge device for a small-section tunnel of the present application; Figure 7 It is an installation strip structure schematic view of the stable slag discharge device for a small-section tunnel of the present application; Figure 8 It is a partial structure cross-sectional schematic view of the stable slag discharge device for a small-section tunnel of the present application; Figure 9 It is a working method flow chart of the stable slag discharge device for a small-section tunnel of the present application.

[0021] The reference signs are as follows: 100, conveying assembly; 101, cross beam; 1011, convex connecting part; 1012, concave connecting part; 102, rotating shaft; 103, conveying belt; 104, fixed disc; 105, fixed hole; 106, supporting leg; 107, fixed ring; 108, motor; 109, fixed pin; 200. Leveling component; 201. Vertical frame; 202. Horizontal frame; 203. Fixing strip; 204. Base; 205. Mounting strip; 2051. Upper connecting part; 2052. Side connecting part; 2053. Strip body; 2054. Strip groove; 206. Pulley; 207. Handle; 208. Rope; 210. Locking block; 211. Locking pin. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] Although the steps in this invention are arranged by reference numerals, this is not intended to limit the order of the steps. Unless the order of the steps is explicitly stated or the execution of a step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" as used herein refers to and covers any and all possible combinations of one or more of the associated listed items. Example

[0024] like Figures 1-9 As shown, a stable slag removal device for a small cross-section tunnel includes a transmission component 100 and a leveling component 200. The transmission component 100 includes two crossbeams 101, and multiple parallel rotating shafts 102 are rotatably connected between the two crossbeams 101. A conveyor belt 103 surrounds the multiple rotating shafts 102. A motor 108 is fixedly connected to one of the crossbeams 101, and a rotating shaft 102 at one end is drivenly connected to the motor 108. A fixing plate 104 is fixedly connected to the side of the crossbeam 101 facing away from the rotating shafts 102. The fixing plate 104 is rotatably connected to one end of a support leg 106 and can lock the rotation of the support leg 106. The leveling component 200 includes two vertical frames 201, which are placed on both sides of the transmission component 100. One end of the vertical frame 201 is fixedly connected to the base 204, and the other end is fixedly connected to the middle of the mounting strip 205. Each end of the mounting strip 205 is rotatably connected to a pulley 206. Each pulley 206 corresponds to a locking block 210 fixedly installed on the mounting strip 205. The pulley 206 is configured to be locked by the locking block 210. One end of the rope 208 is wrapped around the pulley 206, and the other end is detachably fixedly connected to the crossbeam 101.

[0025] In the present application, the preliminary fixation of the transmission assembly 100 is first carried out by rotating the supporting legs 106, and then the inclination of the four corners of the transmission assembly 100 is adjusted by stretching the length of the rope 208 through the cooperation of the leveling assembly 200, so that the plane composed of the rotating shaft 102 and the conveyor belt 103 can be kept parallel to the horizontal plane. The pulley 206 is clamped and limited to rotate by the clamping block 210, and finally the supporting legs 106 are rotated again to make each supporting leg 106 abut against the ground of the tunnel and clamp the supporting leg 106, so that the leveled transmission assembly 100 can be stably and stably placed on the working ground in the tunnel for slagging operation, thereby avoiding the inclination of the transmission device to cause the slag and gravel to slide when transported outside the tunnel, preventing the accumulation of soil and stone from falling and gathering in one place of the transmission line to block the tunnel entrance and cause serious safety accidents, greatly enhancing the safety of the small-section tunnel slagging construction process, and also avoiding the falling of gravel and slag from the conveying device when the slag is discharged outside the tunnel, improving the efficiency of the slagging construction.

[0026] Further, a plurality of holes are circumferentially formed on one side of the pulley 206 close to the clamping block 210, and a plurality of through holes are formed on the side of the clamping block 210 facing the pulley 206. The clamping block 210 is inserted into the through hole of the pulley 206 and the hole of the clamping block 210.

[0027] Further, the leveling assembly 200 includes a plurality of rocking handles 207, each of which is rotatably connected to the mounting strip 205 at one end and fixedly connected to the center of the corresponding pulley 206.

[0028] Further, a plurality of fixing holes 105 are circumferentially formed on the circular surface of the fixing disc 104, and a fixing pin 109 can be inserted into the fixing hole 105.

[0029] Further, each of the fixing discs 104 is rotatably connected to at least two supporting legs 106, and the fixing pin 109 inserted into the selected fixing hole 105 can block the rotation of the supporting leg 106.

[0030] Further, the cross beam 101 is fixedly connected with a fixing ring 107 close to each end, and the fixing ring 107 is wound with the fixing rope 208 away from the cross beam 101.

[0031] In the application, firstly, the foot 106 on the transmission assembly 100 is rotated, then the fixing pin 109 is inserted into the fixing hole 105 on the fixing disc 104 to clamp the rotation of the foot 106, so that the preliminary fixing of the transmission assembly 100 on the ground in the tunnel is realized, then the ropes 208 of the leveling assembly 200 placed on both sides of the transmission assembly 100 are tied on the fixing ring 107 of the cross beam 101, the ropes 208 can be stretched by manually shaking the handle 207 on the pulley 206 by the workers, the inclination of the four corners of the transmission assembly 100 is adjusted by adjusting the length of the four ropes 208, until the plane composed of the rotating shaft 102 and the conveyor belt 103 is horizontal, then the clamping pin 211 is inserted into the perforation of the clamping block 210 and the hole of the pulley 206, so as to clamp and limit the rotation of the pulley 206, finally, the fixing pin 109 in the fixing hole 105 on the fixing disc 104 is pulled out, the foot 106 is rotated and adjusted, and the fixing pin 109 is inserted into the foot 106 after each foot 106 abuts against the ground in the tunnel, so that the leveled transmission assembly 100 can be stably placed in the tunnel, and the slag conveying and transmission device can be stably placed in the rugged tunnel, the falling of the slag and the earth from the conveying device during the slag conveying outside the tunnel is avoided, the height of the foot 106 is adjusted without repeatedly adjusting the single corner of the transmission assembly 100, the leveling efficiency of the transmission device is improved, and the efficiency of the slag conveying construction is improved.

[0032] Further, one end of the cross beam 101 is provided with the convex connecting part 1011, and the other end is provided with the concave connecting part 1012, and the convex connecting part 1011 of one cross beam 101 can be spliced with the concave connecting part 1012 of another cross beam 101.

[0033] In the application, because the convex connecting part 1011 and the concave connecting part 1012 are arranged at the two ends of one transmission assembly 100 respectively, and the convex connecting part 1011 of one cross beam 101 can be spliced with the concave connecting part 1012 of another cross beam 101', the splicing and combination of the multiple transmission assemblies 100 after the leveling operation can be realized by the convex connecting part 1011 and the concave connecting part 1012 on the cross beam 101, so that the appropriate number of transmission assemblies 100 can be spliced and combined according to the specific length of the small-section tunnel, the construction requirement of the slag conveying operation is met, and the horizontal leveling operation of the multiple different transmission assemblies 100 can utilize the same leveling assembly 200, so that the manufacturing cost of the whole device is saved.

[0034] In the present application, after the stable placement of a piece of conveying assembly 100 is completed by using the leveling assembly 200, the leveling and splicing operation is performed again on the adjacent other piece of conveying assembly 100', and after the conveying belt 103' of the other piece of conveying assembly 100' is leveled to be parallel to the horizontal plane, the convex connecting part 1011 of one cross beam 101 is first spliced with the concave connecting part 1012' of the other cross beam 101' to realize the splicing of the two conveying assemblies 100, and finally the height of the supporting leg 106' of the other conveying assembly 100' is adjusted, so that when the splicing in the horizontal direction is performed, the entire conveying assembly 100' is suspended by the rope 208, the supporting leg 106' does not touch the ground, and the conveying belt 103' does not receive the friction resistance of the ground when moving horizontally, and the adjusted height does not change after the movement is completed, so that the worker can easily and accurately realize the butt joint of the convex connecting part 1011 and the concave connecting part 1012', thereby improving the accuracy and efficiency of the splicing operation.

[0035] Further, the leveling assembly 200 comprises a cross frame 202 and a plurality of fixing strips 203, both ends of the cross frame 202 are respectively abutted on two vertical frames 201, and both ends of the fixing strip 203 are respectively detachably connected to the side surface of the vertical frame 201 and the side surface of the cross frame 202.

[0036] In the present application, the supporting leg 106 is rotatable, and is used as the support of the conveying assembly 100. When the conveying assembly 100 is carried to the construction section in the small-section tunnel, the supporting leg 106 is first rotated to make the length direction of the supporting leg 106 consistent with the length direction of the cross beam 101, and the fixing pin 109 is inserted into the fixing hole 105 on the fixing disc 104 to clamp the rotation of the supporting leg 106, so that the occupied space of the conveying assembly 100 during the carrying is greatly reduced, and the worker carrying becomes more convenient and easy. Moreover, the main frame of the leveling assembly 200 is composed of two vertical frames 201 and one cross frame 202, both ends of the cross frame 202 are respectively abutted on two vertical frames 201, and both ends of the fixing strip 203 are respectively detachably connected to the side surface of the vertical frame 201 and the side surface of the cross frame 202, so that the cross frame 202 and the vertical frame 201 can be detached and carried side by side, and the assembly is simple and fast, which improves the efficiency of leveling of multiple conveying assemblies 100 and saves the space during carrying. Through the space-saving design of the conveying assembly 100 and the leveling assembly 200, the worker can conveniently and efficiently carry the slag discharge device to the operation section for installation, leveling and slagging operation even in a small-section tunnel with small space, which can effectively improve the portability of the slag conveying device.

[0037] Further, the mounting strip 205 comprises a strip body 2053, the middle part of the strip body 2053 is fixedly connected with an upper connecting part 2051 and a side connecting part 2052, the side connecting part 2051 is fixedly connected with the top of the vertical frame 201, and the side connecting part 2052 is fixedly connected with the side of the vertical frame 201. Both ends of the strip body 2053 are provided with strip grooves 2054, and the pulley 206 is accommodated in the strip grooves 2054.

[0038] In the application, the fixed connection between the mounting strip 205 and the vertical frame 201 is realized by the two connecting parts of the upper connecting part 2051 and the side connecting part 2052, and the upper connecting part 2051 and the side connecting part 2052 are both provided with threaded holes, and the corresponding connecting parts of the vertical frame 201 are also provided with threaded holes, so that the stable connection between the upper connecting part 2051 and the side connecting part 2052 and the vertical frame is realized by the threaded screw mode, so that when the pulley 206 is rotated to stretch the rope 208, the mounting strip 205 and the vertical frame 201 can have sufficient connection strength and will not be disconnected.

[0039] The application also claims a working method of the stable type slag discharge device using the small-section tunnel, comprising the following steps: S101: rotating the feet 106 at the four corners of the transmission assembly 100 towards the ground to support the transmission assembly 100 on the ground of the tunnel; S102: standing two vertical frames 201 on the two sides of the transmission assembly 100 respectively, and tightening four ropes 208 at the ends of the corresponding cross beams 101 respectively; S103: rotating the four pulleys 206 to make the ropes 208 pull the four corners of the transmission assembly 100 to adjust the angle of the plane where the rotating shaft 102 and the conveyor belt 103 are located, until the pulleys 206 are clamped after being parallel to the horizontal plane; S104: rotating the feet 106 again, until each foot 106 abuts against the ground of the tunnel, and then clamping the rotation of the feet 106; S105: disconnecting the connection between each rope 208 and the cross beam 101, removing the vertical frames 201 on the two sides of the transmission assembly 100, and moving the leveling assembly 200 to the next adjacent transmission assembly 100 to continue the leveling operation.

[0040] The above only describes the preferred embodiments of the application, and it should be noted that those skilled in the art can make some improvements and changes without departing from the concept of the application, and these all belong to the protection scope of the application.

Claims

1. A smooth type slagging device for small cross-section tunnels, characterized in that, The utility model provides a kind of transmission and leveling device, including transmission component (100) and leveling component (200), the transmission component (100) includes two cross beams (101), multiple parallel rotating shafts (102) are rotationally connected between two the cross beams (101), conveyor belt (103) is around multiple rotating shafts (102), one the cross beam (101) is fixedly connected with motor (108), and one rotating shaft (102) located at end portion is drivingly connected with motor (108), the side of the cross beam (101) away from rotating shaft (102) is fixedly connected with fixed disc (104), and the fixed disc (104) is rotationally connected with one end of support leg (106) and can be clamped the rotation of support leg (106); The leveling component (200) includes two vertical supports (201), which are placed on both sides of the transmission component (100). One end of the vertical support (201) is fixedly connected with the base (204), and the other end is fixedly connected with the middle part of the mounting bar (205). Both ends of the mounting bar (205) are rotationally connected with a pulley (206), respectively. Each pulley (206) corresponds to a clamping block (210) fixedly installed on the mounting bar (205). The pulley (206) is configured to be clamped by the clamping block (210). One end of the rope (208) is wound around the pulley (206), and the other end is detachably fixedly connected with the cross beam (101).

2. A smooth type slag outlet device for small cross-section tunnels according to claim 1, characterized in that, The side of the pulley (206) close to the clamping block (210) is circumferentially provided with a plurality of holes. The side of the clamping block (210) facing the pulley (206) is provided with a perforation. The clamping block (210) and the pulley (206) are simultaneously inserted into the perforation and the hole.

3. A smooth type slagging device for small section tunnel as claimed in claim 1 wherein, The leveling component (200) includes a plurality of handles (207). One end of each handle (207) is rotationally connected with the mounting bar (205) and fixedly connected with the center of the corresponding pulley (206).

4. A smooth type slag outlet device for small section tunnel as claimed in claim 1 wherein, A plurality of fixing holes (105) are circumferentially provided on the circular surface of the fixed disc (104). The fixing holes (105) can be inserted into the fixing pin (109).

5. A smooth type slagging device for small section tunnel as claimed in claim 4 wherein, The center of each fixed disc (104) is rotationally connected with at least two support legs (106). The fixing pin (109) inserted into the selected fixing hole (105) can block the rotation of the support leg (106).

6. A smooth type slag outlet device for small section tunnel as claimed in claim 1 wherein, Each cross beam (101) is fixedly connected with a fixed ring (107) close to both ends. One end of the fixed ring (107) away from the cross beam (101) is wound with the rope (208).

7. A smooth type slagging device for small section tunnel as claimed in claim 1 wherein, One end of the cross beam (101) is provided with a convex connecting part (1011), and the other end is provided with a concave connecting part (1012). The convex connecting part (1011) of one cross beam (101) can be spliced with the concave connecting part (1012) of the other cross beam (101).

8. A smooth type slagging device for small section tunnel as claimed in claim 1 wherein, The leveling component (200) includes a cross frame (202) and a plurality of fixed bars (203). Both ends of the cross frame (202) are respectively abutted against two vertical supports (201). Both ends of the fixed bar (203) are respectively detachably connected with the side surface of the vertical support (201) and the side surface of the cross frame (202).

9. A smooth type slagging device for small section tunnel as claimed in claim 1 wherein, The mounting strip (205) comprises a strip body (2053), the middle part of the strip body (2053) is fixedly connected with an upper connecting part (2051) and a side connecting part (2052), the side connecting part (2051) is fixedly connected with the top of the vertical frame (201), and the side connecting part (2052) is fixedly connected with the side of the vertical frame (201). Both ends of the strip body (2053) are provided with strip grooves (2054), and the pulleys (206) are accommodated in the strip grooves (2054).

10. A method for operating a smooth type slag outlet device of a small cross-section tunnel according to any one of claims 1 to 9, characterized in that, The method comprises the following steps: S101: rotating the supporting legs (106) at the four corners of the transmission assembly (100) towards the ground to support the transmission assembly (100) on the ground of the tunnel; S102: erecting two vertical frames (201) on the two sides of the transmission assembly (100) respectively, and tying four ropes (208) to the ends of the corresponding cross beams (101) respectively; S103: rotating the four pulleys (206) to make the ropes (208) pull the four corners of the transmission assembly (100) to adjust the angle of the plane where the rotating shaft (102) and the conveying belt (103) are located, until the pulleys (206) are clamped to stop rotating when the plane is parallel to the horizontal plane; S104: rotating the supporting legs (106) again, and clamping the rotation of the supporting legs (106) until each supporting leg (106) abuts against the ground of the tunnel; S105: disconnecting each rope (208) from the cross beam (101), removing the vertical frames (201) on the two sides of the transmission assembly (100), and moving the leveling assembly (200) to the next adjacent transmission assembly (100) to continue the leveling operation.

Images