Concrete spraying and smearing integrated equipment for tunnel construction

Abstract

The invention provides concrete spraying and smearing integrated equipment for tunnel construction. The concrete spraying and smearing integrated equipment comprises a base, a rail is arranged on the base, a bottom plate is arranged above the base, a rail holding frame is arranged on the bottom plate, a force application plate is arranged below the bottom plate, the two ends of the base are each provided with a first support, and a lead screw is rotationally arranged between the pair of first supports, penetrates through the force application plate and is in threaded connection with the force application plate; a tank body is arranged above the bottom plate, a feeding port and a backflow port are formed in the top of the tank body, a slag discharging port is formed in the bottom of the tank body, a first transmission assembly and a conveying pump are further arranged on the tank body, a spiral stirring blade and a stirring rod are arranged on the first transmission assembly, and the first transmission assembly is connected with an inlet of the conveying pump through a connecting pipe; a swinging assembly and a driving assembly are further arranged on the bottom plate, a smearing assembly is arranged on the swinging assembly, and the swinging assembly, the driving assembly and the smearing assembly are arranged in an associated mode; an outlet of the conveying pump is connected with the driving assembly through a first hose. The equipment provided by the invention can efficiently smear concrete on the inner wall of the tunnel, and is ingenious in structural design and high in automation degree.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, and in particular relates to an integrated equipment for concrete spraying and coating for tunnel construction. Background Art

[0002] With the development of modern construction technology, construction units and the general public have higher and higher requirements for the speed of construction, and the shortage of labor resources has also led to a continuous increase in labor costs. How to complete construction tasks efficiently and with high quality while reducing construction costs as much as possible has become a problem that contemporary construction units need to solve urgently.

[0003] At present, despite the existence of various concrete research and spraying technologies, up to now, the concrete coating on the top of the tunnel is mainly done by manual coating and leveling. Even if some construction projects currently use concrete spraying technology, the leveling work is still done manually, which is time-consuming and labor-intensive, and the degree of automation and construction efficiency are low.

[0004] Therefore, it is necessary to develop a concrete spraying and smearing device for the inner wall of the tunnel to solve the existing problems. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated equipment for concrete spraying and coating for tunnel construction in view of the deficiencies of the prior art. The specific scheme is as follows: A concrete spraying and smearing integrated equipment for tunnel construction comprises a base, a track is arranged on the base, a bottom plate is arranged above the base, a track holding frame for the track is arranged on the bottom plate, a force application plate is arranged below the bottom plate, a bracket 1 is respectively arranged at both ends of the base, a lead screw driven by a stepper motor is rotatably arranged between a pair of the brackets 1, the lead screw passes through the force application plate and is screwed therewith; a tank body for storing concrete is arranged above the bottom plate, a feeding port and a reflux port are arranged on the top of the tank body, a slag discharge port is arranged at the bottom of the tank body, a valve is arranged at the slag discharge port, a first transmission assembly and a conveying pump are also arranged on the tank body, a spiral stirring blade and a plurality of stirring rods are arranged on the first transmission assembly, and the first transmission assembly is connected to the inlet of the conveying pump through a connecting pipe; a swing assembly and a drive assembly are also arranged on the bottom plate, a smearing assembly is arranged on the swing assembly, and the swing assembly, the drive assembly and the smearing assembly are arranged in association with each other; the outlet of the conveying pump is connected to the drive assembly through a hose 1.

[0006] Based on the above, the first transmission assembly includes a cylindrical shell body, a feed port is provided on the side of the shell body, the feed port is connected to the connecting pipe, the direction of the feed port deviates from the axis of the shell body, a discharge port is provided at the bottom of the shell body, a rotating tube is provided through and rotatably provided at the axial position of the shell body, the rotating tube extends into the tank body, a plurality of blades are provided on the rotating tube located in the shell body, a spiral stirring blade and a plurality of stirring rods are provided on the rotating tube located in the tank body, the top end of the rotating tube is rotatably connected to one end of the connecting tube through a rotating joint, and the other end of the connecting tube is connected to the feed port.

[0007] Based on the above, the swing assembly includes a bracket three fixed on the base plate, a rotating shaft is rotatably provided on the bracket three, a driven gear is provided at one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the bottom end of the elastic telescopic rod. Two semicircular guide rails arranged in parallel are also provided on the base plate, and two damping sliders are provided on the elastic telescopic rod, which respectively slide with the two guide rails.

[0008] Based on the above, the driving assembly includes a guide frame fixedly arranged on the base plate, a rack meshing with the driven gear is slidably provided on the guide frame, a pair of brackets 2 are also provided on the base plate, a guide rod is fixedly provided on the pair of brackets 2, a reciprocating screw rod is rotatably provided, a reciprocating slider is provided on the reciprocating screw rod, and two supporting ears are provided on the reciprocating slider, one of which is slidably matched with the guide rod, and the other is connected to the rack through a connecting rod; one end of the reciprocating screw rod is connected to the power output end of the reducer arranged on the base plate, and the dynamic The force input end is associated with a second transmission component arranged on the base plate; the second transmission component includes a cylindrical shell 2 fixed on the base plate, a feed port 2 is provided on the side of the shell 2, the direction of the feed port 2 deviates from the axis of the shell 2, a discharge port 2 is provided at the end of the shell 2, a rotating tube 2 is penetrated and rotated at the axial position of the shell 2, a plurality of blades 2 are provided on the rotating tube 2 located in the shell 2, and one end of the rotating tube 2 is connected to the power input end of the reducer; the feed port 2 is connected to the hose 1; the discharge port 2 is connected to the application component through the hose 2.

[0009] Based on the above, the coating assembly includes a support plate 1 fixedly arranged at the end of the elastic telescopic rod, a support plate 2 is arranged above the support plate 1, a hinged frame is arranged on the support plate 1, a support frame is arranged at the bottom of the support plate 2, the support frame is hinged with the hinged frame, a plurality of elastic rods 1 are arranged between the support plate 1 and the support plate 2, and the two ends of the elastic rod 1 are respectively hinged with the support plate 1 and the support plate 2; a shell is fixedly arranged above the support plate 2 through a plurality of support rods, a plastering box is arranged on the shell, a groove that slides with the side wall of the shell is arranged on the plastering box, a plurality of elastic rods 2 for the plastering box are arranged in the shell, a storage bin is arranged inside the plastering box, and the left and right sides of the storage bin are arc surfaces protruding toward the storage bin, a feed pipe and a return pipe that slide through the shell are arranged at the bottom of the plastering box, a solenoid valve is arranged on the return pipe, a limit rod is also arranged in the shell, and a contact switch 2 for the solenoid valve is arranged at the top of the limit rod; the feed pipe is connected with the hose 2; and the return pipe is connected with the return port through the hose 3.

[0010] Based on the above, scrapers are provided at both ends of the plaster box.

[0011] Based on the above, a contact switch 1 for the delivery pump and the stepping motor is provided on each of the pair of the second brackets.

[0012] The present invention has outstanding substantive features and significant progress compared to the prior art. Specifically, the present invention has the following advantages: The integrated equipment for concrete spraying and coating for tunnel construction provided by the present invention has a structural design that facilitates coating of concrete on inner walls of tunnels with different curvatures. The entire coating process can be completed without much involvement of staff, and coating pressure and flatness can be ensured. The structural design of the entire equipment is ingenious, practical, and low in cost, and it has a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure at point A in the middle.

[0015] Figure 3 yes Figure 1 Schematic diagram of the structure at point B in the middle.

[0016] Figure 4 yes Figure 1 Schematic diagram of the structure at point C in the middle.

[0017] Figure 5 It is a top view of the local structure of the present invention.

[0018] Figure 6It is a schematic diagram of the use state of the present invention.

[0019] In the figure: 1. base; 2. track; 3. bottom plate; 4. track holding frame; 5. bracket 1; 6. force plate; 7. lead screw; 8. stepper motor; 9. tank body; 9-1. feeding port; 9-2. slag discharge port; 9-3. reflux port; 10. first transmission assembly; 10-1. shell 1; 10-2. feeding port 1; 10-3. discharging port 1; 10-4. rotating pipe 1; 10-5. blade 1; 10-6. connecting pipe 1; 11. stirring rod; 12. spiral stirring blade; 13. conveying pump; 14. connecting pipe; 15. hose 1; 16. second transmission assembly; 16-1. shell 2 ;16-2. Feed port 2;16-3. Discharge port 2;16-4. Rotating tube 2;16-5. Blade 2;17. Speed ​​reducer;18. Bracket 2;19. Reciprocating screw rod;20. Guide rod;21. Contact switch 1;22. Reciprocating slider;23. Connecting rod;24. Rack;25. Guide frame;26. Bracket 3;27. Rotating shaft;28. Driven gear;29. Elastic telescopic rod;30. Damping slider;31. Guide rail;32. Hose 2;33. Support plate 1;34. Support plate 2;35. Articulated frame;36. Elastic rod 1;37. Support rod;38. Housing; 39. Plaster box; 39-1. Groove; 39-2. Storage bin; 40. Limit rod; 41. Return pipe; 43. Feed pipe; 44. Solenoid valve; 45. Hose three; 46. Controller; 47. Inner wall of tunnel. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below through specific implementation methods. Example

[0021] like Figure 1-6As shown, the present invention provides an integrated concrete spraying and smearing device for tunnel construction, including a base 1, a track 2 is provided on the base 1, a bottom plate 3 is provided above the base 1, a track holding frame 4 for the track 2 is provided on the bottom plate 3, a force plate 6 is provided below the bottom plate 3, a bracket 5 is provided at each end of the base 1, a lead screw 7 driven by a stepper motor 8 is rotatably provided between a pair of the brackets 5, the lead screw 7 passes through the force plate 6 and is screwed thereto; a tank body 9 for storing concrete is provided above the bottom plate 3, a feeding port 9-1 is provided on the top of the tank body 9, A reflux port 9-3 is provided, and a slag discharge port 9-2 is provided at the bottom of the tank body 9, and a valve is provided at the slag discharge port 9-2. The tank body 9 is also provided with a first transmission component 10 and a delivery pump 13. The first transmission component 10 is provided with a spiral stirring blade 12 and a plurality of stirring rods 11, and the first transmission component 10 is connected to the inlet of the delivery pump 13 through a connecting pipe 14; a swing component and a drive component are also provided on the bottom plate 3, and a smearing component is provided on the swing component, and the swing component, the drive component and the smearing component are arranged in association with each other; the outlet of the delivery pump 13 is connected to the drive component through a hose 15.

[0022] The above-mentioned first transmission assembly 10 includes a cylindrical shell 10-1, and a feed port 10-2 is provided on the side of the shell 10-1, and the feed port 10-2 is connected to the connecting pipe 14. The direction of the feed port 10-2 deviates from the axis of the shell 10-1, and a discharge port 10-3 is provided at the bottom of the shell 10-1. A rotating tube 10-4 is penetrated and rotatably provided at the axial position of the shell 10-1, and the rotating tube 10-4 extends into the tank body 9. A plurality of blades 10-5 are provided on the rotating tube 10-4 located in the shell 10-1, and a spiral stirring blade 12 and a plurality of stirring rods 11 are provided on the rotating tube 10-4 located in the tank body 9. The top end of the rotating tube 10-4 is rotatably connected to one end of a connecting tube 10-6 through a rotating joint, and the other end of the connecting tube 10-6 is connected to the feed port 10-2.

[0023] The above-mentioned swing assembly is mainly used to support the coating assembly and drive it to swing in accordance with the inner wall 47 of the tunnel. It includes a bracket three 26 fixedly mounted on the base plate 3. A rotating shaft 27 is rotatably provided on the bracket three 26. A driven gear 28 is provided at one end of the rotating shaft 27. The other end of the rotating shaft 27 is fixedly connected to the bottom end of an elastic telescopic rod 29. Two semicircular guide rails 31 arranged in parallel are also provided on the base plate 3. Two damping sliders 30 are provided on the elastic telescopic rod 29, which are respectively slidably matched with the two guide rails 31.

[0024] The above-mentioned driving assembly includes a guide frame 25 fixedly mounted on the base plate 3, and a rack 24 meshing with the driven gear 28 is slidably provided on the guide frame 25. A pair of brackets 18 are also provided on the base plate 3, and a guide rod 20 is fixedly mounted on the pair of brackets 18, and a reciprocating screw rod 19 is rotatably provided. A reciprocating slider 22 is provided on the reciprocating screw rod 19, and two supporting ears are provided on the reciprocating slider 22, one of which is slidably matched with the guide rod 20, and the other is connected to the rack 24 through a connecting rod 23; one end of the reciprocating screw rod 19 is connected to the power output end of the reducer 17 arranged on the base plate 3, and the power input end of the reducer 17 is connected to the second transmission assembly 1 arranged on the base plate 3 6 associated arrangement; the second transmission assembly 16 comprises a cylindrical shell 16-1 fixed on the bottom plate 3, a feed port 16-2 is arranged on the side of the shell 16-1, the feed port 16-2 is oriented away from the axis of the shell 16-1, a discharge port 16-3 is arranged at the end of the shell 16-1, a rotating tube 16-4 is passed through and rotated at the axial position of the shell 16-1, a plurality of blades 16-5 are arranged on the rotating tube 16-4 in the shell 16-1, one end of the rotating tube 16-4 is connected to the power input end of the reducer 17; the feed port 16-2 is connected to the hose 15; the discharge port 16-3 is connected to the coating assembly through the hose 32.

[0025] The above-mentioned coating assembly includes a support plate 33 fixedly mounted at the end of the elastic telescopic rod 29, a support plate 34 is arranged above the support plate 33, a hinge frame 35 is arranged on the support plate 33, and a support frame is arranged at the bottom of the support plate 34, the support frame is hinged to the hinge frame 35, a plurality of elastic rods 36 are arranged between the support plate 33 and the support plate 34, and the two ends of the elastic rod 36 are respectively hinged to the support plate 33 and the support plate 34; a shell 38 is fixedly mounted above the support plate 34 through a plurality of support rods 37, a plastering box 39 is arranged on the shell 38, and a sliding plate 36 is arranged on the plastering box 39 for sliding with the side wall of the shell 38 The outer shell 38 is provided with a plurality of elastic rods 2 for the plastering box 39, and a storage bin 39-2 is provided inside the plastering box 39. The left and right sides of the storage bin 39-2 are arc surfaces protruding toward the storage bin 39-2. The bottom of the plastering box 39 is provided with a feed pipe 43 and a return pipe 41 that slide through the outer shell 38. The return pipe 41 is provided with a solenoid valve 44. A limit rod 40 is also provided in the outer shell 38. A contact switch 2 for the solenoid valve 44 is provided at the top of the limit rod 40. The feed pipe 43 is connected to the hose 2 32. The return pipe 41 is connected to the return port 9-3 through the hose 3 45.

[0026] In order to facilitate the smoothing of the applied concrete, scrapers are provided at both ends of the plastering box 39 , and the width of the scrapers is greater than the width of the plastering box 39 .

[0027] When the coating assembly is transferred from the bottom of one side of the tunnel to the bottom of the other side, in order to facilitate the movement of the position of the bottom plate 3, a pair of the brackets 18 are each provided with a contact switch 21 for the delivery pump 13 and the stepping motor 8.

[0028] It should be noted that, in order to facilitate the control of the entire device, the above-mentioned delivery pump 13, solenoid valve 44, contact switch 1 21, contact switch 2 and stepper motor 8 are all electrically connected to the controller 46 disposed on the base 1.

[0029] In addition, in order to prevent the second hose 32 and the third hose 45 from swinging freely, buckles for the second hose 32 and the third hose 45 are provided on the elastic telescopic rod 29 .

[0030] The specific working principle of the present invention is as follows: first, the device is laid in the middle of the bottom of the tunnel, and the coating component is made to contact the inner wall 47 of the tunnel, and the delivery pump 13 is started. The material in the tank body 9 enters the shell body 10-1 through the rotating pipe 10-4 and the connecting pipe 10-6 and impacts on the blade 10-5 to make the rotating pipe 10-4 rotate, and then the stirring rod 11 and the spiral stirring blade 12 on the rotating pipe 10-4 start to stir the material in the tank body 9. The material in the shell body 10-1 is discharged from the discharge port 10-3 and enters the delivery pump 13 through the connecting pipe 14, and then passes through the hose 15. After entering the shell 16-1, the material impacts the blade 16-5 to cause the rotating tube 16-4 to rotate, and then the material is discharged from the discharge port 16-3 through the hose 32 into the storage bin 39-2 in the plastering box 39. When the material in the storage bin 39-2 contacts the inner wall 47 of the tunnel and generates pressure, the storage bin 39-2 will squeeze the elastic rod 2. When the plastering box 39 contacts the contact switch 2 at the end of the limit rod 40, the controller 46 opens the solenoid valve 44, so that the material flows back to the tank 9 through the return pipe 41 and the hose 3 45, ensuring that the pressure is stable when the material is applied to the inner wall 47 of the tunnel.

[0031] When the rotating tube 16-4 rotates, the power output end of the reducer 17 drives the reciprocating screw 19 to rotate accordingly, and then the reciprocating slider 22 moves back and forth along the reciprocating screw 19, so the connecting rod 23 drives the rack 24 to move back and forth, and then the driven gear 28 rotates back and forth, and the coating component also moves back and forth close to the tunnel inner wall 47 to coat the material on the tunnel inner wall 47. It should be noted that whenever the reciprocating slider 22 moves to the position close to the bracket 18 and moves in the preparation direction, it just touches the contact switch 1 21 on the bracket 18. At this time, the controller 46 turns off the delivery pump 13 and the solenoid valve 44, and controls the stepping motor 8 to rotate a certain number of circles to make the bottom plate 3 move a certain distance, and then continues to start the delivery pump 13 and open the solenoid valve 44, and repeats the above actions to coat the uncoated tunnel inner wall 47 with material.

[0032] When the material in the tank body 9 is used up, under the tension provided by the elastic rod 2 for the plastering box 39, the plastering box 39 disengages from the contact switch 2, and the controller 46 turns off the delivery pump 13 and the solenoid valve 44 and sounds an alarm to remind the staff to add material to the tank body 9.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. An integrated equipment for concrete spraying and coating for tunnel construction, characterized in that: The invention comprises a base (1), wherein a track (2) is provided on the base (1), a bottom plate (3) is provided above the base (1), a track holding frame (4) for the track (2) is provided on the bottom plate (3), a force application plate (6) is provided below the bottom plate (3), a bracket (5) is provided at each end of the base (1), a lead screw (7) driven to rotate by a stepping motor (8) is provided between a pair of the brackets (5), the lead screw (7) passes through the force application plate (6) and is screwed to the force application plate (6); a tank body (9) for storing concrete is provided above the bottom plate (3), a feeding port (9-1) and a return port (9-3) are provided at the top of the tank body (9), A slag discharge port (9-2) is provided at the bottom of the tank body (9), and a valve is provided at the slag discharge port (9-2). The tank body (9) is also provided with a first transmission assembly (10) and a delivery pump (13). The first transmission assembly (10) is provided with a spiral stirring blade (12) and a plurality of stirring rods (11). The first transmission assembly (10) is connected to the inlet of the delivery pump (13) via a connecting pipe (14). A swing assembly and a drive assembly are also provided on the bottom plate (3). A smearing assembly is provided on the swing assembly. The swing assembly, the drive assembly and the smearing assembly are arranged in association with each other. The outlet of the delivery pump (13) is connected to the drive assembly via a hose (15).

2. The integrated equipment for concrete spraying and coating for tunnel construction according to claim 1, characterized in that: The first transmission assembly (10) comprises a cylindrical shell (10-1), a feed port (10-2) is provided on the side of the shell (10-1), the feed port (10-2) is connected to the connecting pipe (14), the feed port (10-2) is oriented away from the axis of the shell (10-1), a discharge port (10-3) is provided at the bottom of the shell (10-1), and a rotating pipe (10-4) is provided which penetrates and rotates through the axis of the shell (10-1). The rotating tube (10-4) extends into the tank body (9); a plurality of blades (10-5) are provided on the rotating tube (10-4) located in the shell body (10-1); a spiral stirring blade (12) and a plurality of stirring rods (11) are provided on the rotating tube (10-4) located in the tank body (9); the top end of the rotating tube (10-4) is rotatably connected to one end of the connecting tube (10-6) via a rotating joint; the other end of the connecting tube (10-6) is connected to the feed port (10-2).

3. The integrated equipment for concrete spraying and coating for tunnel construction according to claim 2, characterized in that: The swing assembly comprises a bracket three (26) fixedly mounted on the base plate (3); a rotating shaft (27) is rotatably mounted on the bracket three (26); a driven gear (28) is mounted at one end of the rotating shaft (27); the other end of the rotating shaft (27) is fixedly connected to the bottom end of an elastic telescopic rod (29); two semicircular guide rails (31) arranged in parallel are also mounted on the base plate (3); and two damping sliders (30) are mounted on the elastic telescopic rod (29) and are respectively slidably matched with the two guide rails (31).

4. The integrated equipment for concrete spraying and coating for tunnel construction according to claim 3 is characterized in that: The driving assembly comprises a guide frame (25) fixedly mounted on the base plate (3), a rack (24) meshing with the driven gear (28) being slidably mounted on the guide frame (25), a pair of brackets (18) being further mounted on the base plate (3), a guide rod (20) being fixedly mounted on the pair of brackets (18), a reciprocating screw rod (19) being rotatably mounted on the pair of brackets (18), a reciprocating slider (22) being mounted on the reciprocating screw rod (19), two supporting ears being mounted on the reciprocating slider (22), one of the supporting ears being slidably engaged with the guide rod (20), and the other supporting ear being connected to the rack (24) via a connecting rod (23); one end of the reciprocating screw rod (19) being connected to a power output end of a reducer (17) mounted on the base plate (3), and a power input end of the reducer (17) being connected to a second transmission assembly (21) mounted on the base plate (3). 16) associated arrangement; the second transmission assembly (16) comprises a cylindrical shell (16-1) fixed on the bottom plate (3); a feed port (16-2) is provided on the side of the shell (16-1); the feed port (16-2) is oriented away from the axis of the shell (16-1); a discharge port (16-3) is provided at the end of the shell (16-1); a rotating tube (16-4) is provided through the axis of the shell (16-1) and is rotatable; a plurality of blades (16-5) are provided on the rotating tube (16-4) located in the shell (16-1); one end of the rotating tube (16-4) is connected to the power input end of the reducer (17); the feed port (16-2) is connected to the hose (15); the discharge port (16-3) is connected to the coating assembly through the hose (32).

5. The integrated equipment for concrete spraying and coating for tunnel construction according to claim 1, characterized in that: The smearing assembly comprises a support plate 1 (33) fixedly mounted on the end of the elastic telescopic rod (29), a support plate 2 (34) being arranged above the support plate 1 (33), a hinged frame (35) being arranged on the support plate 1 (33), a support frame being arranged at the bottom of the support plate 2 (34), the support frame being hingedly connected to the hinged frame (35), a plurality of elastic rods 1 (36) being arranged between the support plate 1 (33) and the support plate 2 (34), the two ends of the elastic rods 1 (36) being hingedly connected to the support plate 1 (33) and the support plate 2 (34) respectively; A shell (38) is fixedly provided above the second support plate (34) via a plurality of support rods (37); a plaster box (39) is provided on the shell (38); a groove (39-1) is provided on the plaster box (39) and is slidably matched with the side wall of the shell (38); a plurality of elastic rods (2) for the plaster box (39) are provided in the shell (38); a storage bin (39-2) is provided inside the plaster box (39); the left and right sides of the storage bin (39-2) are arc surfaces protruding toward the storage bin (39-2); a feed pipe (43) and a return pipe (41) which slide through the shell (38) are provided at the bottom of the plaster box (39); a solenoid valve (44) is provided on the return pipe (41); a limit rod (40) is further provided in the shell (38); a contact switch (2) for the solenoid valve (44) is provided at the top of the limit rod (40); The feed pipe (43) is connected to the second hose (32); the return pipe (41) is connected to the return port (9-3) via the third hose (45).

6. The integrated equipment for concrete spraying and coating for tunnel construction according to claim 5, characterized in that: Scrapers are provided at both ends of the plastering box (39).

7. The integrated equipment for concrete spraying and coating for tunnel construction according to claim 4, characterized in that: A pair of the second brackets (18) are each provided with a contact switch (21) for the delivery pump (13) and the stepping motor (8).

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