Fire retardant coating coating device and construction method of tunnel gypsum-alkali slag fire retardant coating

Abstract

The present invention discloses a fireproof coating coating device and a construction method of tunnel gypsum-alkali slag fireproof coating, and relates to the field of vehicle transportation construction. The present invention directly installs a coating nozzle on an engineering vehicle, and when the engineering vehicle travels along the tunnel, the fireproof coating can be directly sprayed on the inner wall of the tunnel by the coating nozzle, without the need to manually hold the coating nozzle for spraying, which not only makes the coating of the tunnel fireproof coating more convenient and quick, but also improves the coating efficiency of the tunnel fireproof coating, and the fireproof coating will not splash onto the staff during spraying, preventing the coating from damaging the health of the staff; the coating nozzle is installed on the engineering vehicle through a hydraulic lifting platform and an angle adjustment mechanism, and through the cooperation of the engineering vehicle, the hydraulic lifting platform and the angle adjustment mechanism, the inner wall of the tunnel can be fully coated, thereby improving the coating effect of the tunnel fireproof coating.

Description

Technical Field

[0001] The present invention belongs to the field of vehicle transportation construction, and in particular, relates to a fire retardant coating coating device and a construction method of a tunnel gypsum-alkali slag fire retardant coating. Background Art

[0002] Tunnels are engineering structures buried in the ground and are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, military tunnels, etc. Due to the limited escape routes in the tunnels, it is difficult for firefighters to enter the fire scene for timely rescue and other unfavorable factors. Once a fire occurs in the tunnel, it often causes significant casualties and structural damage. In order to reduce or avoid the occurrence of fire, it is usually necessary to apply a layer of fireproof coating on the inner wall of the tunnel to improve the fireproof performance of the tunnel.

[0003] At present, when applying fire retardant coatings to tunnels, most of the time, the fire retardant coatings and coating equipment are transported into the tunnel by engineering vehicles, and the coating nozzles in the coating equipment are connected to the spray pump and the coating tank through a long conduit. When arriving at the spraying position, the staff need to get off the vehicle and hold the coating nozzle to spray the fire retardant coating. After the fire retardant coating in a certain position is sprayed, the fire retardant coating and coating equipment need to be transported forward again by engineering vehicles to spray the next position. Among them, the length of the feeding conduit during spraying is limited, and the tunnel fire retardant coating needs to be sprayed in small sections, which makes the coating process more cumbersome and reduces the coating efficiency of the fire retardant coating. In addition, the direct spraying process requires manual operation, which makes it easy for the fire retardant coating to splash onto the staff during spraying, causing damage to the staff's body. Summary of the invention

[0004] In view of the problems in the related art, the present invention proposes a fire retardant coating coating device and a construction method of a tunnel gypsum-alkali slag fire retardant coating to overcome the above-mentioned technical problems existing in the existing related art.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a fireproof coating coating device, comprising an engineering vehicle and a spraying mechanism, wherein a hydraulic lifting platform is installed in the compartment of the engineering vehicle, and an angle adjustment mechanism is installed on the lifting platform at the top of the hydraulic lifting platform;

[0007] The spraying mechanism includes a paint pumping assembly and a coating nozzle which are connected to each other, and the angle adjustment mechanism includes a rotation adjustment assembly and an adjustment dial, wherein the adjustment dial is installed on the outer edge of the lifting platform, and the coating nozzle is installed on one side of the adjustment dial, and the rotation adjustment assembly can rotate and adjust the adjustment dial to adjust the spraying angle of the coating nozzle on one side of the adjustment dial;

[0008] The adjusting turntable is also provided with a swing mechanism for driving the coating nozzle to swing back and forth up and down, the swing mechanism includes a reciprocating swing component and a winding component, the winding component can synchronously rewind and unwind the paint pumping component when the reciprocating swing component drives the coating nozzle to swing back and forth up and down, so that the paint pumping component on the adjusting turntable is always in a taut and straight state;

[0009] The angle adjustment mechanism also includes a locking component, which can lock and fix the adjustment turntable when the coating nozzle swings back and forth up and down.

[0010] Furthermore, the paint pumping assembly includes a paint tank, a feeding pipe and a spray pump, and the paint tank and the spray pump are both positioned in the compartment of the engineering vehicle. The feed end of the spray pump is connected to the paint tank through a conduit, and the discharge end of the spray pump is connected to the coating nozzle through the feeding pipe.

[0011] Furthermore, the angle adjustment mechanism also includes a bracket, which is fixedly mounted on the outer edge of the top of the hydraulic lifting platform, and a mounting seat is fixedly mounted on the outer end of the bracket, and an adjustment shaft is rotatably mounted on the mounting seat, one end of the adjustment shaft is fixedly connected to the adjustment turntable, and the other end of the adjustment shaft is transmission-connected to the rotary adjustment assembly.

[0012] Furthermore, the rotary adjustment component includes an adjustment motor and a driven wheel, the driven wheel is fixedly installed on the end of the adjustment shaft, the adjustment motor is fixedly installed on the top of the hydraulic lifting platform, and the output end of the adjustment motor is driven by a transmission wheel, and the transmission wheel and the driven wheel are connected by a transmission belt.

[0013] Further, the locking assembly includes a rotating positioning sleeve fixedly mounted on the adjusting shaft, a sliding groove is provided on the side wall of the mounting seat, a telescopic positioning sleeve located on the outer ring of the adjusting shaft is slidably mounted in the sliding groove, a pressure spring is abutted against the inner end of the telescopic positioning sleeve, an outer end of the telescopic positioning sleeve abuts against one end of the rotating positioning sleeve, and the abutting ends of the telescopic positioning sleeve and the rotating positioning sleeve are both provided with mutually meshing and clamping limiting teeth;

[0014] A spline groove is provided on the inner wall of the slide groove, and a spline which is slidably engaged with the spline groove is fixedly mounted on the outer surface of the telescopic positioning sleeve.

[0015] Furthermore, the reciprocating swing assembly includes a swing arm and a swing drive unit, the coating nozzle is fixedly installed on one end of the swing arm, and a connecting shaft is fixedly installed on the other end of the swing arm. The connecting shaft is rotatably installed on one side of the adjusting turntable, and the swing drive unit is installed on the adjusting turntable and is transmission-connected to the swing arm.

[0016] Furthermore, the swing drive unit includes an eccentric wheel and a swing motor, a drive shaft is fixedly installed on one end of the eccentric wheel, and the drive shaft is rotatably installed on the adjusting turntable, the other end of the eccentric wheel is rotatably connected to a connecting rod, one end of the connecting rod is rotatably connected to the front end of the swing arm, and the swing motor is fixedly installed on the side of the adjusting turntable opposite to the eccentric wheel, and the output end of the swing motor is transmission-connected to one end of the drive shaft.

[0017] Furthermore, the winding assembly includes a transmission gear and a winding roller, the transmission gear is fixedly mounted on the connecting shaft, the winding roller is rotatably mounted on one end of the adjusting turntable through a support frame, and the inner end of the winding roller is fixedly mounted with a driven gear meshing with the transmission gear.

[0018] The present invention also discloses a construction method of a tunnel gypsum-alkali slag fireproof coating, and the specific construction steps are:

[0019] The engineering vehicle is moved slowly forward in the tunnel along the lane close to the inner wall of the tunnel, thereby driving the coating nozzle in the spraying mechanism to move slowly close to the inner wall of the tunnel, and at the same time, the coating pumping component continuously pumps the gypsum-alkali slag fire retardant coating into the coating nozzle, so that the coating nozzle sprays the gypsum-alkali slag fire retardant coating onto the inner wall of the tunnel;

[0020] During the spraying process of the gypsum-alkali slag fire retardant coating, the coating nozzle is driven to swing up and down by the swing mechanism to increase the coating area of ​​the coating nozzle;

[0021] When the engineering vehicle drives the coating nozzle to the coating end position, the height of the hydraulic lifting platform is used to drive the coating nozzle to be raised and lowered, and then the engineering vehicle drives the coating nozzle to move slowly close to the inner wall of the tunnel again to spray the gypsum-alkali slag fireproof coating on the inner wall of the tunnel at different heights;

[0022] When it is necessary to spray the gypsum-alkali slag fireproof coating on the top wall of the tunnel, the height of the coating nozzle is first adjusted by the hydraulic lifting platform so that the coating nozzle is close to the top wall of the tunnel, and then the adjustment dial is rotated and adjusted by the rotary adjustment component to adjust the spraying angle of the coating nozzle so that the spraying end of the coating nozzle is tilted upward, and then the engineering vehicle drives the coating nozzle to move along the top wall of the tunnel so that the coating nozzle sprays the gypsum-alkali slag fireproof coating on the top wall of the tunnel;

[0023] When it is necessary to spray gypsum-alkali slag fire retardant coating on the lower end of the tunnel side wall below the height of the engineering vehicle, first lower the hydraulic lifting platform to the lowest height position to make the coating nozzle close to the lower end of the tunnel side wall, and then adjust the spraying end of the coating nozzle to be tilted downward by rotating the adjustment component and the adjustment dial. After that, the engineering vehicle drives the coating nozzle to move along the lower end of the tunnel side wall so that the coating nozzle sprays the gypsum-alkali slag fire retardant coating to the lower end of the tunnel side wall.

[0024] The present invention has the following beneficial effects:

[0025] 1. In the present invention, the coating nozzle is directly installed on the engineering vehicle. When the engineering vehicle travels along the tunnel, the fire-retardant coating can be directly sprayed on the inner wall of the tunnel through the coating nozzle without the need for manual hand-held coating nozzle spraying. This not only makes the coating of the tunnel fire-retardant coating more convenient and quick, but also improves the coating efficiency of the tunnel fire-retardant coating. In addition, the fire-retardant coating will not splash onto the workers during spraying, thereby preventing the coating from damaging the health of the workers.

[0026] 2. The coating nozzle in the present invention is installed on the engineering vehicle through the cooperation of a hydraulic lifting platform and an angle adjustment mechanism. The height of the coating nozzle can be adjusted through the hydraulic lifting platform to spray the fire-retardant coating on the inner walls of tunnels at different heights. When it is necessary to spray the fire-retardant coating on the top wall and the lower end of the side wall of the tunnel below the height of the engineering vehicle, the coating nozzle can be first adjusted to a position close to the coating point through the hydraulic lifting platform, and then the spraying angle of the coating nozzle can be adjusted through the angle adjustment component so that the coating nozzle is facing the coating point. Therefore, through the cooperation of the engineering vehicle, the hydraulic lifting platform and the angle adjustment mechanism, the inner wall of the tunnel can be fully coated, thereby improving the coating effect of the tunnel fire-retardant coating.

[0027] 3. In the process of spraying the tunnel fire retardant coating in the present invention, the coating nozzle can be driven to swing back and forth up and down by the swing mechanism, so that the coating nozzle can transport and spray the fire retardant coating outward in a fan shape, thereby increasing the coating area of ​​the coating nozzle and the coating efficiency of the tunnel fire retardant coating.

[0028] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, they can also obtain drawings based on these drawings without paying creative work.

[0030] Figure 1 This is one of the three-dimensional structural schematic diagrams of the coating device of the present invention;

[0031] Figure 2 For the present invention Figure 1 A local enlarged structural schematic diagram;

[0032] Figure 3 This is the second schematic diagram of the three-dimensional structure of the coating device of the present invention;

[0033] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B;

[0034] Figure 5 This is one of the three-dimensional structural schematic diagrams of the top of the hydraulic lifting platform of the present invention;

[0035] Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at C;

[0036] Figure 7 This is the second schematic diagram of the three-dimensional structure of the top of the hydraulic lifting platform of the present invention;

[0037] Figure 8 For the present invention Figure 7 Schematic diagram of the local enlarged structure at D.

[0038] In the figure: 1. engineering vehicle; 2. hydraulic lifting platform; 3. spraying mechanism; 31. coating nozzle; 32. paint tank; 33. feeding pipe; 34. spray pump; 4. angle adjustment mechanism; 41. adjusting turntable; 42. adjusting motor; 43. bracket; 44. mounting seat; 45. transmission wheel; 46. transmission belt; 47. driven wheel; 48. adjusting shaft; 49. rotating positioning sleeve; 410. telescopic positioning sleeve; 411. limiting tooth; 412. slide groove; 413. pressure spring; 414. spline groove; 415. spline; 5. swing mechanism; 51. swing arm; 52. connecting shaft; 53. driving shaft; 54. eccentric wheel; 55. connecting rod; 56. transmission gear; 57. driven gear; 58. winding roller; 59. swing motor. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0040] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention. Example 1

[0041] See also Figure 1 , Figure 2 As shown, the present invention is a fire retardant coating device, including an engineering vehicle 1 and a spraying mechanism 3, a hydraulic lifting platform 2 is installed in the compartment of the engineering vehicle 1, and an angle adjustment mechanism 4 is installed on the lifting platform at the top of the hydraulic lifting platform 2; the spraying mechanism 3 includes a coating pumping component and a coating nozzle 31 that are interconnected, and the angle adjustment mechanism 4 includes a rotating adjustment component and an adjusting turntable 41, the adjusting turntable 41 is installed on the outer edge of the lifting platform, and the coating nozzle 31 is installed on one side of the adjusting turntable 41, and the rotating adjustment component can rotate and adjust the adjusting turntable 41 to adjust the adjusting turntable 41. The coating nozzle 31 on one side is used to adjust the spraying angle; the adjusting turntable 41 is also equipped with a swing mechanism 5 for driving the coating nozzle 31 to swing back and forth up and down, the swing mechanism 5 includes a reciprocating swing component and a winding component, the winding component can synchronously rewind and unwind the paint pumping component when the reciprocating swing component drives the coating nozzle 31 to swing back and forth up and down, so that the paint pumping component on the adjusting turntable 41 is always in a taut and straight state; the angle adjustment mechanism 4 also includes a locking component, which can lock and fix the adjusting turntable 41 when the coating nozzle 31 swings back and forth up and down;

[0042] Specifically, when applying the tunnel fire retardant coating, the engineering vehicle 1 is slowly advanced along the lane close to the inner wall of the tunnel in the tunnel, thereby driving the coating nozzle 31 in the spraying mechanism 3 to move slowly close to the inner wall of the tunnel, and at the same time, the paint pumping component continuously pumps the fire retardant coating into the coating nozzle 31, so that the coating nozzle 31 sprays the fire retardant coating onto the inner wall of the tunnel; during the spraying of the fire retardant coating, the coating nozzle 31 is driven to swing back and forth up and down by the swing mechanism 5 to increase the coating area of ​​the coating nozzle 31; when the engineering vehicle 1 drives the coating nozzle 31 to reach the coating terminal position, the height of the hydraulic lifting platform 2 is used to drive the coating nozzle 31 to be raised and lowered, and then the engineering vehicle 1 drives the coating nozzle 31 to move slowly close to the inner wall of the tunnel again, so as to spray the fire retardant coating on the inner wall of the tunnel at different heights; and when it is necessary to spray the fire retardant coating on the top wall of the tunnel, first The height of the coating nozzle 31 is adjusted by the hydraulic lifting platform 2 so that the coating nozzle 31 is close to the top wall of the tunnel, and then the adjusting dial 41 is rotated and adjusted by the rotating adjustment component, and then the spraying angle of the coating nozzle 31 is adjusted so that the spraying end of the coating nozzle 31 is tilted upward, and then the engineering vehicle 1 drives the coating nozzle 31 to move along the top wall of the tunnel, so that the coating nozzle 31 sprays the fire retardant coating on the top wall of the tunnel; when it is necessary to spray the fire retardant coating on the lower end position of the tunnel side wall which is lower than the height of the engineering vehicle 1, firstly, the hydraulic lifting platform 2 is lowered to the lowest height position so that the coating nozzle 31 is close to the lower end of the tunnel side wall, and then the spraying end of the coating nozzle 31 is adjusted to be tilted downward by the cooperation of the rotating adjustment component and the adjusting dial 41, and then the engineering vehicle 1 drives the coating nozzle 31 to move along the lower end of the tunnel side wall, so that the coating nozzle 31 sprays the fire retardant coating on the lower end of the tunnel side wall;

[0043] When the engineering vehicle 1 travels along the tunnel, the fire-retardant coating can be directly sprayed on the inner wall of the tunnel through the coating nozzle 31 without the need for manual holding of the coating nozzle 31 for spraying, which not only makes the coating of the tunnel fire-retardant coating more convenient and quick, but also improves the coating efficiency of the tunnel fire-retardant coating. During spraying, the fire-retardant coating will not splash onto the workers, thereby preventing the coating from damaging the health of the workers. Through the cooperation of the engineering vehicle 1, the hydraulic lifting platform 2 and the angle adjustment mechanism 4, the inner wall of the tunnel can be fully coated, thereby improving the coating effect of the tunnel fire-retardant coating. During the spraying of the tunnel fire-retardant coating, the coating nozzle 31 can be driven to swing back and forth up and down by the swing mechanism 5, so that the coating nozzle 31 can transport and spray the fire-retardant coating outward in a fan shape, thereby improving the coating area of ​​the coating nozzle 31 and the coating efficiency of the tunnel fire-retardant coating. Example 2

[0044] See also Figure 1-Figure 3As shown, the difference between this embodiment and the above embodiment is that the paint pumping assembly includes a paint tank 32, a feeding pipe 33 and a spray pump 34, the paint tank 32 and the spray pump 34 are both positioned in the compartment of the engineering vehicle 1, the feed end of the spray pump 34 is connected to the paint tank 32 through a conduit, and the discharge end of the spray pump 34 is connected to the coating nozzle 31 through the feeding pipe 33;

[0045] When the spraying mechanism 3 is working, the spraying pump 34 sucks the fire-retardant paint in the paint tank 32 through the conduit, and then pumps the fire-retardant paint into the coating nozzle 31 through the feeding pipe 33, and then sprays the fire-retardant paint onto the inner wall of the tunnel through the coating nozzle 31 to form a fire-retardant coating on the inner wall of the tunnel. Example 3

[0046] See also Figure 1 , Figure 2 , Figure 5-Figure 8 As shown, the difference between this embodiment and the above embodiment is that the angle adjustment mechanism 4 also includes a bracket 43, the bracket 43 is fixedly installed on the outer edge of the top of the hydraulic lifting platform 2, the outer end of the bracket 43 is fixedly installed with a mounting seat 44, an adjusting shaft 48 is rotatably installed on the mounting seat 44, one end of the adjusting shaft 48 is fixedly connected to the adjusting dial 41, and the other end of the adjusting shaft 48 is transmission-connected to the rotary adjustment component; the rotary adjustment component includes an adjusting motor 42 and a driven wheel 47, the driven wheel 47 is fixedly installed on the end of the adjusting shaft 48, the adjusting motor 42 is fixedly installed on the top of the hydraulic lifting platform 2, the output end of the adjusting motor 42 is transmission-connected with a transmission wheel 45, and the transmission wheel 45 and the driven wheel 47 are transmission-connected through a transmission belt 46;

[0047] When the angle adjustment mechanism 4 is working, the driving wheel 45 is driven to rotate by the adjusting motor 42, and then the driving wheel 45 drives the driven wheel 47 to rotate through the transmission belt 46, and then the driven wheel 47 drives the adjusting shaft 48 and the adjusting dial 41 to rotate. When the adjusting dial 41 rotates, the angle of the coating nozzle 31 on one side thereof can be adjusted, so that the coating nozzle 31 can be used to spray different positions of the inner wall of the tunnel;

[0048] Furthermore, the locking assembly includes a rotating positioning sleeve 49 fixedly mounted on the adjusting shaft 48, and a sliding groove 412 is provided on the side wall of the mounting seat 44, a telescopic positioning sleeve 410 located on the outer ring of the adjusting shaft 48 is slidably installed in the sliding groove 412, a pressure spring 413 is installed abuttingly on the inner end of the telescopic positioning sleeve 410, and the outer end of the telescopic positioning sleeve 410 abuts against one end of the rotating positioning sleeve 49, and the abutting ends of the telescopic positioning sleeve 410 and the rotating positioning sleeve 49 are both provided with mutually meshing limiting teeth 411; a spline groove 414 is provided on the inner wall of the sliding groove 412, and a spline 415 slidably engaged with the spline groove 414 is fixedly installed on the outer surface of the telescopic positioning sleeve 410;

[0049] The spline groove 414 and the spline 415 cooperate to limit the circumferential direction of the telescopic positioning sleeve 410, and the telescopic positioning sleeve 410 limits the circumferential direction of the rotational positioning sleeve 49 through the limiting latch 411, so that the adjustment shaft 48 and the adjustment dial 41 are limited by the cooperation of the spline groove 414, the spline 415, the telescopic positioning sleeve 410, the limiting latch 411 and the rotational positioning sleeve 49, thereby improving the installation stability of the adjustment shaft 48 and the adjustment dial 41, preventing the adjustment dial 41 from shaking during the spraying construction process, and ensuring the normal spraying construction; and when the adjustment shaft 48 and the adjustment dial 41 are rotated for adjustment, the adjustment shaft 48 The rotating positioning sleeve 49 is driven to rotate synchronously. At this time, the rotating positioning sleeve 49 pushes the telescopic positioning sleeve 410 to slide into the slide groove 412 through the inclined surface on one side of the limiting latch tooth 411, thereby releasing the limiting lock on the adjusting shaft 48, so that the adjusting shaft 48 and the adjusting dial 41 can rotate and adjust normally. When the adjustment of the adjusting shaft 48 and the adjusting dial 41 is completed, the telescopic positioning sleeve 410 slides and resets in the direction of the rotating positioning sleeve 49 under the action of the reset elastic force of the pressure spring 413, so that the telescopic positioning sleeve 410 and the rotating positioning sleeve 49 are engaged and locked again through the limiting latch tooth 411, thereby restoring the limiting lock on the adjusting shaft 48 and the adjusting dial 41. Example 4

[0050] See also Figure 1-Figure 6 As shown, the difference between this embodiment and the above embodiment is that the reciprocating swing assembly includes a swing arm 51 and a swing drive unit, one end of the swing arm 51 is fixedly mounted with a coating nozzle 31, the other end of the swing arm 51 is fixedly mounted with a connecting shaft 52, the connecting shaft 52 is rotatably mounted on one side of the adjusting turntable 41, the swing drive unit is mounted on the adjusting turntable 41 and is transmission-connected with the swing arm 51; the swing drive unit includes an eccentric wheel 54 and a swing motor 59, one end of the eccentric wheel 54 is fixedly mounted with a driving shaft 53, the driving shaft 53 is rotatably mounted on the adjusting turntable 41, the other end of the eccentric wheel 54 is rotationally connected with a connecting rod 55, one end of the connecting rod 55 is rotationally connected with the front end of the swing arm 51, the swing motor 59 is fixedly mounted on the side of the adjusting turntable 41 opposite to the eccentric wheel 54, and the output end of the swing motor 59 is transmission-connected with one end of the driving shaft 53;

[0051] When the swing mechanism 5 is working, the swing motor 59 drives the driving shaft 53 and the eccentric wheel 54 to rotate. When the eccentric wheel 54 rotates, the connecting rod 55 drives the swing arm 51 to swing back and forth up and down with the connecting shaft 52 as the fulcrum, thereby driving the coating nozzle 31 at one end of the swing arm 51 to swing back and forth up and down, so as to increase the coating area of ​​the coating nozzle 31;

[0052] Furthermore, the winding assembly includes a transmission gear 56 and a winding roller 58, the transmission gear 56 is fixedly mounted on the connecting shaft 52, the winding roller 58 is rotatably mounted on one end of the adjusting turntable 41 through a support frame, and a driven gear 57 meshing and transmission-connected with the transmission gear 56 is fixedly mounted on the inner end of the winding roller 58; wherein the feeding pipe 33 between the winding roller 58 and the coating nozzle 31 is in a taut and straightened state, when the swing arm 51 swings upward and drives the coating nozzle 31 to move upward, the swing arm 51 drives the connecting shaft 52 and the transmission gear 56 to rotate, thereby driving the winding roller 58 to rotate and unwind, so that the winding roller 58 and the coating nozzle 31 are in a taut and straightened state. 1, and when the swing arm 51 swings downward and drives the coating nozzle 31 to move downward, the swing arm 51 drives the connecting shaft 52 and the transmission gear 56 to rotate in the opposite direction, thereby driving the winding roller 58 to rotate in the opposite direction and winding, so that the feeding tube 33 between the winding roller 58 and the coating nozzle 31 is always kept in a taut and straightened state, thereby preventing the feeding tube 33 from shaking when the swing arm 51 swings (if the feeding tube 33 between the winding roller 58 and the coating nozzle 31 is in a bent and loose state, it will shake when the swing arm 51 swings) and affects the stability of the swing arm 51 when it swings, thereby ensuring the normal and stable operation of the swing arm 51. Example 5

[0053] See also Figure 1-Figure 8 As shown, this embodiment discloses a construction method of a tunnel gypsum-alkali slag fire retardant coating, and the specific construction steps are:

[0054] The engineering vehicle 1 is slowly advanced along the lane close to the inner wall of the tunnel, thereby driving the coating nozzle 31 in the spraying mechanism 3 to slowly move close to the inner wall of the tunnel, and at the same time, the coating pumping assembly continuously pumps the gypsum-alkali slag fire retardant coating into the coating nozzle 31, so that the coating nozzle 31 sprays the gypsum-alkali slag fire retardant coating onto the inner wall of the tunnel;

[0055] During the spraying process of the gypsum-alkali slag fire retardant coating, the coating nozzle 31 is driven to swing back and forth up and down by the swing mechanism 5 to increase the coating area of ​​the coating nozzle 31;

[0056] When the engineering vehicle 1 drives the coating nozzle 31 to the coating end position, the coating nozzle 31 is driven to be raised and lowered by the height of the hydraulic lifting platform 2, and then the coating nozzle 31 is driven by the engineering vehicle 1 again to move slowly close to the inner wall of the tunnel, so as to spray the gypsum-alkali slag fireproof coating on the inner wall of the tunnel at different heights;

[0057] When it is necessary to spray the gypsum-alkali slag fire retardant coating on the top wall of the tunnel, the height of the coating nozzle 31 is first adjusted by the hydraulic lifting platform 2 so that the coating nozzle 31 is close to the top wall of the tunnel, and then the adjustment dial 41 is rotated and adjusted by the rotary adjustment component to adjust the spraying angle of the coating nozzle 31 so that the spraying end of the coating nozzle 31 is tilted upward, and then the engineering vehicle 1 drives the coating nozzle 31 to move along the top wall of the tunnel so that the coating nozzle 31 sprays the gypsum-alkali slag fire retardant coating on the top wall of the tunnel;

[0058] When it is necessary to spray gypsum-alkali slag fire retardant coating on the lower end of the tunnel side wall below the height of the engineering vehicle 1, first lower the hydraulic lifting platform 2 to the lowest height position to make the coating nozzle 31 close to the lower end of the tunnel side wall, and then adjust the spraying end of the coating nozzle 31 to be tilted downward by rotating the adjustment component and the adjustment dial 41. Then, the engineering vehicle 1 drives the coating nozzle 31 to move along the lower end of the tunnel side wall so that the coating nozzle 31 sprays the gypsum-alkali slag fire retardant coating to the lower end of the tunnel side wall.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The preferred embodiments of the invention disclosed above are only used to help explain the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can understand and use the invention well.

Claims

1. A fire retardant coating coating device, comprising an engineering vehicle and a spraying mechanism, characterized in that: A hydraulic lifting platform is installed in the compartment of the engineering vehicle, and an angle adjustment mechanism is installed on the lifting platform at the top of the hydraulic lifting platform; The spraying mechanism includes a paint pumping assembly and a coating nozzle which are connected to each other, and the angle adjustment mechanism includes a rotation adjustment assembly and an adjustment dial, wherein the adjustment dial is installed on the outer edge of the lifting platform, and the coating nozzle is installed on one side of the adjustment dial, and the rotation adjustment assembly can rotate and adjust the adjustment dial to adjust the spraying angle of the coating nozzle on one side of the adjustment dial; The adjusting turntable is also provided with a swing mechanism for driving the coating nozzle to swing back and forth up and down, the swing mechanism includes a reciprocating swing component and a winding component, the winding component can synchronously rewind and unwind the paint pumping component when the reciprocating swing component drives the coating nozzle to swing back and forth up and down, so that the paint pumping component on the adjusting turntable is always in a taut and straight state; The angle adjustment mechanism also includes a locking assembly, which can lock and fix the adjustment turntable when the coating nozzle swings back and forth up and down; The angle adjustment mechanism also includes a bracket, which is fixedly mounted on the outer edge of the top of the hydraulic lifting platform, and a mounting seat is fixedly mounted on the outer end of the bracket, and an adjustment shaft is rotatably mounted on the mounting seat, one end of the adjustment shaft is fixedly connected to the adjustment dial, and the other end of the adjustment shaft is transmission-connected to the rotary adjustment assembly; The rotary adjustment assembly includes an adjustment motor and a driven wheel, wherein the driven wheel is fixedly mounted on the end of the adjustment shaft, the adjustment motor is fixedly mounted on the top of the hydraulic lifting platform, and a transmission wheel is installed on the output end of the adjustment motor, and the transmission wheel and the driven wheel are connected by a transmission belt. The locking assembly includes a rotational positioning sleeve fixedly mounted on the adjusting shaft, a sliding groove is provided on the side wall of the mounting seat, a telescopic positioning sleeve located on the outer ring of the adjusting shaft is slidably mounted in the sliding groove, a pressure spring is abutted against the inner end of the telescopic positioning sleeve, the outer end of the telescopic positioning sleeve abuts against one end of the rotational positioning sleeve, and the abutting ends of the telescopic positioning sleeve and the rotational positioning sleeve are both provided with limiting teeth that mesh with each other, a spline groove is provided on the inner wall of the sliding groove, and a spline that is slidably engaged with the spline groove is fixedly mounted on the outer surface of the telescopic positioning sleeve; The reciprocating swing assembly includes a swing arm and a swing drive unit, the coating nozzle is fixedly installed on one end of the swing arm, and a connecting shaft is fixedly installed on the other end of the swing arm, and the connecting shaft is rotatably installed on one side of the adjusting turntable, and the swing drive unit is installed on the adjusting turntable and is transmission-connected to the swing arm; The swing drive unit includes an eccentric wheel and a swing motor, one end of the eccentric wheel is fixedly mounted with a drive shaft, the drive shaft is rotatably mounted on the adjusting turntable, the other end of the eccentric wheel is rotatably connected with a connecting rod, one end of the connecting rod is rotatably connected to the front end of the swing arm, the swing motor is fixedly mounted on the side of the adjusting turntable opposite to the eccentric wheel, and the output end of the swing motor is drivingly connected to one end of the drive shaft; The winding assembly includes a transmission gear and a winding roller. The transmission gear is fixedly mounted on the connecting shaft. The winding roller is rotatably mounted on one end of the adjusting turntable through a support frame. The inner end of the winding roller is fixedly mounted with a driven gear meshing with the transmission gear.

2. The fire retardant coating coating device according to claim 1, characterized in that: The paint pumping assembly includes a paint tank, a feeding pipe and a spray pump. The paint tank and the spray pump are both positioned in the compartment of the engineering vehicle. The feed end of the spray pump is connected to the paint tank through a conduit, and the discharge end of the spray pump is connected to the coating nozzle through the feeding pipe.

3. A method for constructing a tunnel gypsum-alkali slag fireproof coating, using the fireproof coating coating device according to any one of claims 1 to 2, characterized in that: The specific construction steps are: The engineering vehicle is moved slowly forward in the tunnel along the lane close to the inner wall of the tunnel, thereby driving the coating nozzle in the spraying mechanism to move slowly close to the inner wall of the tunnel, and at the same time, the coating pumping component continuously pumps the gypsum-alkali slag fire retardant coating into the coating nozzle, so that the coating nozzle sprays the gypsum-alkali slag fire retardant coating onto the inner wall of the tunnel; During the spraying process of the gypsum-alkali slag fire retardant coating, the coating nozzle is driven to swing up and down by the swing mechanism to increase the coating area of ​​the coating nozzle; When the engineering vehicle drives the coating nozzle to the coating end position, the height of the hydraulic lifting platform is used to drive the coating nozzle to be raised and lowered, and then the engineering vehicle drives the coating nozzle to move slowly close to the inner wall of the tunnel again to spray the gypsum-alkali slag fireproof coating on the inner wall of the tunnel at different heights; When it is necessary to spray the gypsum-alkali slag fireproof coating on the top wall of the tunnel, the height of the coating nozzle is first adjusted by the hydraulic lifting platform so that the coating nozzle is close to the top wall of the tunnel, and then the adjustment dial is rotated and adjusted by the rotary adjustment component to adjust the spraying angle of the coating nozzle so that the spraying end of the coating nozzle is tilted upward, and then the engineering vehicle drives the coating nozzle to move along the top wall of the tunnel so that the coating nozzle sprays the gypsum-alkali slag fireproof coating on the top wall of the tunnel; When it is necessary to spray gypsum-alkali slag fire retardant coating on the lower end of the tunnel side wall below the height of the engineering vehicle, first lower the hydraulic lifting platform to the lowest height position to make the coating nozzle close to the lower end of the tunnel side wall, and then adjust the spraying end of the coating nozzle to be tilted downward by rotating the adjustment component and the adjustment dial. After that, the engineering vehicle drives the coating nozzle to move along the lower end of the tunnel side wall so that the coating nozzle sprays the gypsum-alkali slag fire retardant coating to the lower end of the tunnel side wall.

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