A splash protection device for initial wet shotcrete of tunnel

Abstract

The present invention provides a tunnel initial support wet spraying concrete splash protection device, which belongs to the field of tunnel construction, and includes a protection frame arranged on two sets of tracks, wherein the protection frame includes two U-shaped frames and a U-shaped plate, and the U-shaped plate is fixed between the two U-shaped frames. The present invention has the following beneficial effects: through the design of the cleaning mechanism, after the wet spraying is completed, a part of concrete slag still remains on the U-shaped plate. At this time, the cleaning plate can be driven by the adjustment component to rotate and descend, so that the switching adjustment of the cleaning plate state makes the cleaning plate abut against the U-shaped plate. At this time, the travel motor is driven, and the travel motor drives the travel gear to rotate through the motor shaft, and the travel gear moves in an arc along the rack plate, thereby driving the moving part to move in an arc on the arc shell, and the arc movement of the moving part drives the cleaning plate to move in an arc, thereby scraping and cleaning the remaining part of the concrete slag accumulated on the U-shaped plate into the storage cavity.

Description

Technical Field

[0001] The invention discloses a tunnel primary support wet spraying concrete splash protection device, belonging to the field of tunnel construction. Background Art

[0002] The primary support of a tunnel refers to the construction of a structural layer with low rigidity and as part of the permanent load-bearing structure immediately after the tunnel is excavated in order to control the appropriate release and deformation of the surrounding rock stress, increase the structural safety and facilitate construction. Shotcrete the structural layer, which is a construction method of spraying and pouring fine stone concrete with a pressure spray gun. Shotcrete is formed by loading pre-mixed cement, sand, gravel, water and a certain amount of admixtures into a sprayer, using high-pressure air to send it to the nozzle and mix it with an accelerator, and then spraying it at a high speed onto the surface of rock or concrete.

[0003] During the spraying process, a large amount of concrete rebounds and splashes occur, which not only affects the construction, but also causes a lot of waste. In the prior art, by adjusting the concrete mix ratio, the amount of accelerator, and reasonably controlling the spraying distance and spraying angle, the amount of rebound and splashing can be reduced to a certain extent, but the effect is not very ideal, and it cannot fundamentally solve the huge waste caused by the rebound and splashing of concrete. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a tunnel primary support wet shotcrete splash protection device.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] The U-shaped plate is fixed between the two U-shaped frames, and a movable groove is formed on the U-shaped plate. The movable groove is slidably connected with a movable plate, and a spray gun is movably connected to the movable plate through a universal joint. The spray gun is connected to the output end of a vehicle-mounted wet spraying machine. A shielding and protection mechanism matching the movable groove is provided on the U-shaped plate. Cleaning mechanisms are provided on opposite sides of the two U-shaped frames. A baffle is respectively clamped on the outer sides of the two ends of the U-shaped plate, and a storage cavity is formed between the baffle and the two U-shaped frames and one U-shaped plate. A recovery box is also provided on the inner wall of the U-shaped plate, and a sewage suction pump is provided inside the recovery box. A sewage suction pipe is provided at the input end of the sewage suction pump, and the end of the sewage suction pipe passes through the storage cavity.

[0007] Furthermore, sliding blocks are provided in the middle of both sides of the movable plate, connecting guide plates are provided on the other two sides of the movable plate, sliding grooves matching with the sliding blocks are provided on the inner walls on both sides of the movable groove, and accommodating grooves are provided in the middle of the sliding grooves on both sides, and both ends of the connecting guide plates extend into the accommodating grooves on both sides.

[0008] Furthermore, the shielding protection mechanism includes a shell fixed on the inner side of the U-shaped plate, a winding motor is fixed to one side of the shell, the side output end of the winding motor is connected to the winding roller, a shielding cloth is wound on the winding roller, the end of the accommodating groove passes through the shell, and the shielding cloth passes through the accommodating groove and is connected and fixed to the connecting guide plate.

[0009] Furthermore, the cleaning mechanism includes an arc-shaped shell fixed on the inner side of the U-shaped frame, an arc-shaped groove is opened on the inner side of the arc-shaped shell, an arc-shaped cavity is opened on the inner side of the arc-shaped groove, a rack plate is fixed on the bottom of the arc-shaped cavity, and a moving part is slidably connected in the arc-shaped groove.

[0010] Furthermore, the moving part includes a top bracket and a bottom bracket, the top bracket is fixed above the bottom bracket, the top bracket is slidably connected in the arc groove, a walking motor is provided on one side of the outer surface of the top bracket, a motor shaft is provided at the output end of the walking motor, a walking gear is fixed at the end of the motor shaft, the walking gear is meshed with the rack plate, an adjustment cavity is provided inside the bottom bracket, and an adjustment component is provided inside the adjustment cavity.

[0011] Furthermore, the adjustment component includes a rotating motor, a fixed plate one and a fixed plate two fixed inside the adjustment cavity, a rotating shaft is provided at the side output end of the rotating motor, a guide frame is fixed on the rotating shaft, two limit plates and two driving rods are fixed on one side of the outer surface of the guide frame, and a guide groove is opened on the other side of the outer surface of the guide frame.

[0012] Furthermore, the guide groove comprises two groups of symmetrically arranged rotation grooves, the two groups of rotation grooves are connected through lifting groove 1 and lifting groove 2, and the two groups of rotation grooves, the two groups of lifting grooves 1 and the two groups of lifting grooves 2 are connected to form the guide groove.

[0013] The cam is connected to the fixing plate one by one, and the two ends of the fixing plate are respectively fixed with the fixing plate one and the fixing plate two, and the end of the fixing plate one is fixed with a protrusion, and the protrusion penetrates into the guide groove, and the fixing plate two is rotatably connected with a rotating sleeve, and the rotating sleeve is fixed with two side plates and a fixing column, and the two side plates are fixed on both sides of the fixing column, and the fixing column is provided with a rotating arc groove one and a rotating arc groove two that cooperate with the driving rod, and the rotating arc groove one and the rotating arc groove two are connected and staggered, and the side plate is provided with a plurality of limiting grooves that cooperate with the rotating arc groove one and the rotating arc groove two, and the limiting groove cooperates with the limiting plate, and the rotating sleeve is slidably connected with a rotating column and two guide convex strips inside, and the two guide convex strips are fixed to the middle parts of both sides of the rotating column, and one end of the rotating column is rotatably connected with the mounting seat, and the mounting seat is slidably connected with the outer surface of the rotating plate two, and the other end of the rotating column penetrates to the outer side of the bottom bracket and is connected and fixed to the cleaning plate.

[0014] Furthermore, a slide groove is provided on the inner wall of the arc-shaped groove, and a sliding block matching with the slide groove is fixed on the outer surface of the top bracket.

[0015] Furthermore, scraping plates are provided at both side openings of the movable groove, and the scraping plates are squeezed together with the outer surface of the shielding cloth.

[0016] Beneficial effects of the present invention:

[0017] Through the design of the shielding and protection mechanism, the vehicle-mounted wet spraying machine drives the output end to move, and synchronously drives the spray gun and the movable plate to slide in the movable groove to realize the wet spraying action. In the process of the movable plate sliding in the movable groove, the controller will synchronously start the winding motors on both sides, thereby realizing the winding or extending action of the winding rollers on both sides, thereby making the winding or extending action of the shielding cloth on both sides, so that the shielding cloth on both sides is always in a flat state, and when the shielding cloth is rolled up, the concrete slag accumulated on the shielding cloth will be scraped off by the scraper plate, and the slag will fall into the storage cavity.

[0018] Through the design of the cleaning mechanism, after the wet spraying is completed, a part of concrete slag still remains on the U-shaped plate. At this time, the cleaning plate can be driven to rotate and descend through the adjustment component, so that the switching adjustment of the cleaning plate state makes the cleaning plate abut against the U-shaped plate. At this time, the travel motor is driven, and the travel motor drives the travel gear to rotate through the motor shaft. The travel gear moves in an arc along the rack plate, thereby driving the moving part to move in an arc on the arc shell. The arc movement of the moving part drives the cleaning plate to move in an arc, thereby scraping off the part of the concrete slag remaining on the U-shaped plate and cleaning it into the storage cavity.

[0019] Through the design of the adjustment component, the rotating motor is started, the rotating motor drives the rotating shaft to rotate, the rotating shaft drives the guide frame to rotate, the rotation of the guide frame will drive the limit plate, the driving rod and the guide slot to rotate synchronously, when the rotating slot on the guide slot rotates to match the protrusion, at this time, the height of the protrusion changes, and the rotating guide frame drives the driving rod to rotate into the rotating arc slot 1 or the rotating arc slot 2, the extrusion of the driving rod will push the fixed column and the side plate to rotate synchronously, when the fixed column rotates, it will drive the rotating column to rotate through the rotating sleeve, the rotation of the rotating column will drive the cleaning plate to rotate, so that the cleaning plate rotates ninety degrees. When the driving rod is disengaged from the rotating arc groove one or the rotating arc groove two, it will rotate out of the limiting groove. At this time, the protrusion enters the lifting groove one or the lifting groove two from the rotating groove. The inner wall of the lifting groove one or the lifting groove two squeezes the protrusion, which will drive the protrusion to rise and fall vertically. When the protrusion rises and falls, it will drive the rotating plate one to rotate. The rotation of the rotating plate one will drive the rotating plate two to rotate. The rotating plate two will drive the mounting seat to move vertically. The mounting seat will pull the rotating column and the guide convex strip to move vertically, thereby causing the cleaning plate to descend, and the bottom of the cleaning plate is squeezed together with the surface of the U-shaped plate.

[0020] By connecting the guide plate and the design of the accommodating groove, the two ends of the shielding cloth are extended into the inner wall of the movable groove, thereby guiding the movement of the shielding cloth and avoiding interference with the movement of the shielding cloth.

[0021] Through the design of the recycling box, the sewage suction pump and the sewage suction pipe, the concrete slag in the storage cavity can be sucked and stored, which is convenient for the recycling and treatment of the concrete slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of a tunnel primary support wet shotcrete splash protection device of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of a movable plate, a sliding block, a connecting guide plate, a shielding cloth and a movable groove of a tunnel primary support wet shotcrete splash protection device of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of a movable plate, a sliding block, a connecting guide plate and a shielding cloth of a tunnel primary support wet shotcrete splash protection device of the present invention;

[0026] Figure 4 The internal structure of a tunnel primary support wet shotcrete splash protection device of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 5 The internal structure of a tunnel primary support wet shotcrete splash protection device of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 6 It is a schematic diagram of the connection structure of the arc-shaped shell and the moving part of a tunnel primary support wet shotcrete splash protection device of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the moving parts of a tunnel primary support wet shotcrete splash protection device of the present invention;

[0030] Figure 8 It is a schematic diagram of the internal structure of the moving parts of a tunnel primary support wet shotcrete splash protection device of the present invention;

[0031] Fig. 9 The present invention is a schematic diagram of the cleaning mechanism structure of a tunnel primary wet shotcrete splash protection device.

[0032] In the figure, 1, track; 2, U-shaped frame; 3, U-shaped plate; 4, movable groove; 5, movable plate; 6, sliding block; 7, connecting guide plate; 8, shielding cloth; 9, sliding groove; 10, containing groove; 11, shell; 12, winding roller; 13, spray gun; 14, baffle; 15, storing cavity; 16, arc shell; 17, arc groove; 18, slide groove; 19, arc cavity; 20, rack plate; 21, moving part; 22, top bracket; 23, bottom bracket; 24, slider; 25, travel motor; 26, motor shaft; 27, travel gear; 28, adjustment cavity; 29, fixed Plate 1; 30, fixed plate 2; 31, rotating plate 1; 32, rotating plate 2; 33, convex block; 34, rotating shaft; 35, guide frame; 36, guide groove; 37, rotating groove; 38, lifting groove 1; 39, lifting groove 2; 40, limit plate; 41, driving rod; 42, limit groove; 43, rotating arc groove 1; 44, rotating arc groove 2; 45, rotating column; 46, guide convex strip; 47, rotating sleeve; 48, cleaning plate; 49, side plate; 50, fixed column; 51, recovery box; 52, sewage suction pump; 53, sewage suction pipe; 54, scraper plate; 55, mounting seat. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 9 The present invention provides a technical solution for a splash protection device for wet spraying concrete of a tunnel primary support, comprising a protection frame arranged on two sets of tracks 1, the protection frame comprising two U-shaped frames 2 and a U-shaped plate 3, the U-shaped plate 3 being fixed between the two U-shaped frames 2, a movable groove 4 being provided on the U-shaped plate 3, a movable plate 5 being slidably connected inside the movable groove 4, a spray gun 13 being movably connected to the movable plate 5 through a universal joint, the spray gun 13 being connected to the output end of a vehicle-mounted wet spraying machine, a shielding protection mechanism cooperating with the movable groove 4 being provided on the U-shaped plate 3, scraping plates 54 being provided at both side openings of the movable groove 4, the scraping plates 54 being squeezed together with the outer surface of the shielding cloth 8, and a cleaning mechanism being provided on opposite sides of the two U-shaped frames 2 A baffle 14 is respectively clamped on the outer sides of both ends of the U-shaped plate 3, and a storage chamber 15 is formed between the baffle 14 and the two U-shaped frames 2 and one U-shaped plate 3. A recovery box 51 is also provided on the inner wall of the U-shaped plate 3, and a sewage suction pump 52 is provided inside the recovery box 51. A sewage suction pipe 53 is provided at the input end of the sewage suction pump 52, and the end of the sewage suction pipe 53 passes through the storage chamber 15. Sliding blocks 6 are provided in the middle of both sides of the movable plate 5, and connecting guide plates 7 are provided on the other two sides of the movable plate 5. Sliding grooves 9 that cooperate with the sliding blocks 6 are opened on the inner walls of both sides of the movable groove 4, and receiving grooves 10 are opened in the middle of the sliding grooves 9 on both sides, and both ends of the connecting guide plate 7 extend into the receiving grooves 10 on both sides.

[0035] See also Figure 1-Figure 5The shielding protection mechanism includes a shell 11 fixed to the inner side of the U-shaped plate 3, a winding motor is fixed to one side of the shell 11, and the side output end of the winding motor is connected to the winding roller 12, and the winding roller 12 is rolled up with a shielding cloth 8, and the end of the accommodating groove 10 penetrates into the shell 11, and the shielding cloth 8 penetrates into the accommodating groove 10 and is connected and fixed to the connecting guide plate 7; through the design of the shielding protection mechanism, the vehicle-mounted wet spraying machine drives the output end to move, and synchronously drives the spray gun 13 and the movable plate 5 slide in the movable groove 4 to realize the wet spraying action. During the sliding of the movable plate 5 in the movable groove 4, the controller will synchronously start the winding motors on both sides, thereby realizing the winding or extending action of the winding rollers 12 on both sides, and then the winding or extending action of the shielding cloth 8 on both sides, so that the shielding cloth 8 on both sides is always in a flat state, and when the shielding cloth 8 is rolled up, the concrete slag accumulated on the shielding cloth 8 will be scraped off by the scraper plate 54, and the slag will fall into the storage cavity 15.

[0036] See also Figure 6-Figure 9 The cleaning mechanism includes an arc-shaped shell 16 fixed to the inner side of the U-shaped frame 2, an arc-shaped groove 17 is provided on the inner side of the arc-shaped shell 16, an arc-shaped cavity 19 is provided on the inner side of the arc-shaped groove 17, a rack plate 20 is fixed to the bottom of the arc-shaped cavity 19, a moving part 21 is slidably connected in the arc-shaped groove 17, and the moving part 21 includes a top bracket 22 and a bottom bracket 23, the top bracket 22 is fixed above the bottom bracket 23, the top bracket 22 is slidably connected in the arc-shaped groove 17, a travel motor 25 is provided on one side of the outer surface of the top bracket 22, a motor shaft 26 is provided at the output end of the travel motor 25, a travel gear 27 is fixed to the end of the motor shaft 26, and the travel gear 27 is meshed with the rack plate 20, an adjusting cavity 28 is provided inside the bottom bracket 23, and an adjusting cavity 28 is provided inside Component, a slide groove 18 is opened on the inner wall of the arc-shaped groove 17, and a slider 24 matching the slide groove 18 is fixed on the outer surface of the top bracket 22; through the design of the cleaning mechanism, after the wet spraying is completed, a part of concrete slag still remains on the U-shaped plate 3. At this time, the cleaning plate 48 can be driven by the adjustment component to rotate and descend, so that the switching adjustment of the state of the cleaning plate 48 makes the cleaning plate 48 abut against the U-shaped plate 3. At this time, the travel motor 25 is driven, and the travel motor 25 drives the travel gear 27 to rotate through the motor shaft 26. The travel gear 27 moves in an arc along the rack plate 20, thereby driving the moving part 21 to move in an arc on the arc shell 16. The arc movement of the moving part 21 drives the cleaning plate 48 to move in an arc, thereby scraping off and cleaning part of the concrete slag remaining on the U-shaped plate 3 into the storage cavity 15.

[0037] See also Figure 8-Figure 9The adjustment assembly includes a rotating motor, a fixing plate 1 29 and a fixing plate 2 30 fixed inside the adjustment cavity 28. A rotating shaft 34 is provided at the side output end of the rotating motor. A guide frame 35 is fixed on the rotating shaft 34. Two limit plates 40 and two driving rods 41 are fixed on one side of the outer surface of the guide frame 35. A guide groove 36 is provided on the other side of the outer surface of the guide frame 35. The guide groove 36 includes two groups of symmetrically arranged rotating grooves 37. The two groups of rotating grooves 37 are connected by a lifting groove 1. The two sets of rotating grooves 37, the two sets of lifting grooves 1 38 and the two sets of lifting grooves 2 39 are connected to form the guide groove 36. The fixed plate 1 29 is rotatably connected with a rotating column. The two ends of the rotating column are respectively fixed with a rotating plate 1 31 and a rotating plate 2 32. The end of the rotating plate 1 31 is fixed with a protrusion 33. The protrusion 33 penetrates into the guide groove 36. The fixed plate 2 is rotatably connected with a rotating sleeve 47. The rotating sleeve 47 is fixed with a Two side plates 49 and a fixed column 50, the two side plates 49 are fixed on both sides of the fixed column 50, the fixed column 50 is provided with a rotating arc groove 1 43 and a rotating arc groove 2 44 that match the driving rod 41, the rotating arc groove 1 43 and the rotating arc groove 2 44 are connected and staggered, the side plate 49 is provided with a plurality of limiting grooves 42 that match the rotating arc groove 1 43 and the rotating arc groove 2 44, the limiting grooves 42 match the limiting plate 40, A rotating column 45 and two guide ridges 46 are slidably connected inside the rotating sleeve 47. The two guide ridges 46 are fixed at the middle of both sides of the rotating column 45. One end of the rotating column 45 is rotatably connected to a mounting seat 55. The mounting seat 55 is slidably connected to the outer surface of the second rotating plate 32. A sliding groove is provided on the outer surface of the second rotating plate 32. The mounting seat 55 is slidably connected in the sliding groove. The other end of the rotating column 45 penetrates to the outer side of the bottom bracket 23 and is connected and fixed to the cleaning plate 48.By the design of the adjustment component, the rotating motor is started, the rotating motor drives the rotating shaft 34 to rotate, the rotating shaft 34 drives the guide frame 35 to rotate, the rotation of the guide frame 35 will drive the limit plate 40, the driving rod 41 and the guide groove 36 to rotate synchronously, when the rotating groove 37 on the guide groove 36 rotates to match the protrusion 33, at this time, the height of the protrusion 33 changes, and the rotating guide frame 35 drives the driving rod 41 to rotate into the rotating arc groove 1 43 or the rotating arc groove 2 44, the extrusion of the driving rod 41 will push the fixed column 50 and the side plate 49 to rotate synchronously, when the fixed column 50 rotates, it will drive the rotating column 45 to rotate through the rotating sleeve 47, the rotation of the rotating column 45 will drive the cleaning plate 48 to rotate, so that the cleaning plate 48 rotates ninety degrees. The driving rod 41 is flush with the U-shaped plate 3, and when the driving rod 41 is disengaged from the rotating arc groove 1 43 or the rotating arc groove 2 44, it will be rotated out of the limiting groove 42. At this time, the protrusion 33 enters the lifting groove 1 38 or the lifting groove 2 39 from the rotating groove 37. The inner wall of the lifting groove 1 38 or the lifting groove 2 39 squeezes the protrusion 33, which will drive the protrusion 33 to move vertically. The protrusion 33 will drive the rotating plate 1 31 to rotate while the rotating plate 1 31 rotates, and the rotating plate 2 32 will drive the mounting seat 55 to move vertically. The mounting seat 55 will pull the rotating column 45 and the guide convex strip 46 to move vertically, thereby causing the cleaning plate 48 to descend, and the bottom of the cleaning plate 48 is squeezed together with the surface of the U-shaped plate 3.

[0038] When in use, the output end of the vehicle-mounted wet spraying machine is connected to the spray gun 13, and then the vehicle-mounted wet spraying machine drives the output end to move, and synchronously drives the spray gun 13 and the movable plate 5 to slide in the movable groove 4 to realize the wet spraying action, so as to facilitate the wet spraying work of the tunnel. In the process of the movable plate 5 sliding in the movable groove 4, the controller will synchronously start the winding motors on both sides, so as to realize the winding or extending action of the winding rollers 12 on both sides, and then the winding or extending action of the shielding cloth 8 on both sides is made, so that the shielding cloth 8 on both sides is always in a flat state, and when the shielding cloth 8 is rolled up, the concrete slag accumulated on the shielding cloth 8 will be scraped off by the scraper plate 54, and the slag will fall into the storage chamber 15;

[0039] During the wet spraying process of the spray gun 13, there will be continuous rebound and splashing of concrete slag into the space surrounded by the two U-shaped frames 2 and a U-shaped plate 3. A part of the slag falls into the storage chamber 15 along the arc-shaped slope of the U-shaped plate 3. When the wet spraying is completed, a part of the concrete slag still remains on the U-shaped plate 3. At this time, the rotating motor can be started, and the rotating motor drives the rotating shaft 34 to rotate, and the rotating shaft 34 drives the guide frame 35 to rotate. The rotation of the guide frame 35 will drive the limit plate 40, the driving rod 41 and the guide groove 36 to rotate synchronously. When the guide groove When the rotating groove 37 on 36 rotates to match the protrusion 33, at this time, the height of the protrusion 33 changes, and the rotating guide frame 35 drives the driving rod 41 to rotate into the rotating arc groove 1 43 or the rotating arc groove 2 44. The extrusion of the driving rod 41 drives the fixed column 50 and the side plate 49 to rotate synchronously. When the fixed column 50 rotates, it drives the rotating column 45 to rotate through the rotating sleeve 47. The rotation of the rotating column 45 drives the cleaning plate 48 to rotate, so that the cleaning plate 48 rotates 90 degrees to become flush with the U-shaped plate 3. When the driving rod 41 is pressed, the fixed column 50 and the side plate 49 rotate synchronously. When the fixed column 50 rotates, it drives the rotating column 45 to rotate through the rotating sleeve 47. The rotation of the rotating column 45 drives the cleaning plate 48 to rotate, so that the cleaning plate 48 rotates 90 degrees to become flush with the U-shaped plate 3. When the cam 41 is disengaged from the rotating arc groove 1 43 or the rotating arc groove 2 44, it will be rotated out of the limiting groove 42. At this time, the protrusion 33 enters the lifting groove 1 38 or the lifting groove 2 39 from the rotating groove 37. The inner wall of the lifting groove 1 38 or the lifting groove 2 39 squeezes the protrusion 33, which will drive the protrusion 33 to move vertically. When the protrusion 33 is lifted and lowered, it will drive the rotating plate 1 31 to rotate. The rotation of the rotating plate 1 31 will drive the rotating plate 2 32 to rotate. The rotating plate 2 32 will drive the mounting seat 55 to move vertically. The mounting seat 55 will pull the rotating column 45 The guide convex strip 46 moves vertically, thereby causing the cleaning plate 48 to descend, and the bottom of the cleaning plate 48 is squeezed together with the surface of the U-shaped plate 3. At this time, the travel motor 25 is driven, and the travel motor 25 drives the travel gear 27 to rotate through the motor shaft 26. The travel gear 27 moves in an arc along the rack plate 20, thereby driving the moving member 21 to move in an arc on the arc shell 16. The arc movement of the moving member 21 drives the cleaning plate 48 to move in an arc, thereby scraping off part of the concrete slag remaining on the U-shaped plate 3 and cleaning it into the storage cavity 15.

[0040] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tunnel primary wet shotcrete splash protection device, characterized in that: The invention comprises a protective frame arranged on two sets of rails (1), the protective frame comprising two U-shaped frames (2) and a U-shaped plate (3), the U-shaped plate (3) being fixed between the two U-shaped frames (2), the U-shaped plate (3) being provided with a movable groove (4), the movable groove (4) being internally slidably connected with a movable plate (5), the movable plate (5) being movably connected with a spray gun (13) via a universal joint, the spray gun (13) being connected to the output end of a vehicle-mounted wet spraying machine, the U-shaped plate (3) being provided with a shielding and protective mechanism matched with the movable groove (4), the two U-shaped frames (2) being provided with a cleaning mechanism on opposite sides, the two ends of the U-shaped plate (3) being respectively clamped with a baffle plate (14) on the outer side, the baffle plate (14) being connected to the two A storage chamber (15) is formed between the U-shaped frame (2) and one of the U-shaped plates (3); a recovery box (51) is further provided on the inner wall of the U-shaped plate (3); a sewage suction pump (52) is provided inside the recovery box (51); a sewage suction pipe (53) is provided at the input end of the sewage suction pump (52); an end of the sewage suction pipe (53) penetrates into the storage chamber (15); the cleaning mechanism comprises an arc-shaped shell (16) fixed to the inner side of the U-shaped frame (2); an arc-shaped groove (17) is provided on the inner side of the arc-shaped shell (16); an arc-shaped chamber (19) is provided on the inner side of the arc-shaped groove (17); a rack plate (20) is fixed to the inner bottom of the arc-shaped chamber (19); a moving member (21) is slidably connected in the arc-shaped groove (17); the moving member ( 21) comprises a top bracket (22) and a bottom bracket (23), wherein the top bracket (22) is fixed above the bottom bracket (23), the top bracket (22) is slidably connected in the arc groove (17), a travel motor (25) is provided on one side of the outer surface of the top bracket (22), a motor shaft (26) is provided at the output end of the travel motor (25), a travel gear (27) is fixed at the end of the motor shaft (26), the travel gear (27) is meshed with the rack plate (20), an adjustment cavity (28) is provided inside the bottom bracket (23), an adjustment component is provided inside the adjustment cavity (28), the adjustment component comprises a rotating motor fixed inside the adjustment cavity (28), a fixing plate (2 9) and a second fixed plate (30), a rotating shaft (34) is provided at a side output end of the rotating motor, a guide frame (35) is fixed on the rotating shaft (34), two limit plates (40) and two driving rods (41) are fixed on one side of the outer surface of the guide frame (35), a guide groove (36) is provided on the other side of the outer surface of the guide frame (35), the guide groove (36) comprises two groups of symmetrically arranged rotating grooves (37), the two groups of rotating grooves (37) are connected through a lifting groove 1 (38) and a lifting groove 2 (39), the two groups of rotating grooves (37), the two groups of lifting grooves 1 (38) and the two groups of lifting grooves 2 (39) are connected to form the guide groove (36), a rotating column is rotatably connected to the first fixed plate (29),A rotating plate 1 (31) and a rotating plate 2 (32) are fixed to the two ends of the rotating column respectively. A protrusion (33) is fixed to the end of the rotating plate 1 (31). The protrusion (33) penetrates into the guide groove (36). A rotating sleeve (47) is rotatably connected to the fixed plate 2 (30). Two side plates (49) and a fixed column (50) are fixed to the rotating sleeve (47). The two side plates (49) are fixed to the two sides of the fixed column (50). The fixed column (50) is provided with a rotating arc groove 1 (43) and a rotating arc groove 2 (44) which are matched with the driving rod (41). The rotating arc groove 1 (43) and the rotating arc groove 2 (44) are connected and arranged alternately. The side plate (49) is provided with a plurality of limit grooves (42) that match the first rotating arc groove (43) and the second rotating arc groove (44). The limit grooves (42) match the limit plate (40). A rotating column (45) and two guide ridges (46) are slidably connected inside the rotating sleeve (47). The two guide ridges (46) are fixed at the middle of both sides of the rotating column (45). One end of the rotating column (45) is rotatably connected to a mounting seat (55). The mounting seat (55) is slidably connected to the outer surface of the second rotating plate (32). The other end of the rotating column (45) passes through the outer side of the bottom bracket (23) and is connected and fixed to the cleaning plate (48).

2. A tunnel primary support wet shotcrete splash protection device according to claim 1, characterized in that: Sliding blocks (6) are provided in the middle of both sides of the movable plate (5), and connecting guide plates (7) are provided on the other two sides of the movable plate (5). Sliding grooves (9) matching with the sliding blocks (6) are provided on the inner walls of both sides of the movable groove (4), and receiving grooves (10) are provided in the middle of the sliding grooves (9) on both sides, and both ends of the connecting guide plate (7) extend into the receiving grooves (10) on both sides.

3. A tunnel primary support wet shotcrete splash protection device according to claim 2, characterized in that: The shielding protection mechanism comprises a shell (11) fixed on the inner side of the U-shaped plate (3), a winding motor is fixed on one side of the shell (11), a side output end of the winding motor is connected to a winding roller (12), a shielding cloth (8) is wound on the winding roller (12), an end of the accommodating groove (10) passes through the shell (11), and the shielding cloth (8) passes through the accommodating groove (10) and is connected and fixed to the connecting guide plate (7).

4. A tunnel primary support wet shotcrete splash protection device according to claim 3, characterized in that: A sliding groove (18) is provided on the inner wall of the arc-shaped groove (17), and a sliding block (24) matching with the sliding groove (18) is fixed on the outer surface of the top bracket (22).

5. A tunnel primary support wet shotcrete splash protection device according to claim 4, characterized in that: Scraping plates (54) are provided at both side openings of the movable groove (4), and the scraping plates (54) are pressed together with the outer surface of the shielding cloth (8).

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