阅读说明：本技术 一种建筑施工用钢管内壁高效涂漆装置 (Steel pipe inner wall high-efficient painting device for construction ) 是由 岳永 于 2021-05-13 设计创作，主要内容包括：本发明公开了一种建筑施工用钢管内壁高效涂漆装置,包括底座,底座顶面两侧分别对称固定有支撑板。本发明通过环形导轨、第一环形导轨以及电机的巧妙设置,可以对通过n形罩体与从动轴之间区域放置到相对两个锥形筒之间的钢管自动的进行涂料工作,工人只需要持续的把钢管通过n形罩体与从动轴之间区域放置到相对两个锥形筒之间即可,从而实现流水线式的钢管内壁涂料的工作流程,有效的替代了传统的人工对钢管内壁涂料的工作过程,而且本装置直接将漆料充入钢管内,并通过转动钢管来实现钢管内壁全方位均匀涂料的过程,此工作流程能够确保钢管内壁被全方位无遗留的涂料,避免出现钢管内壁某处未喷涂到位的情况发生。(The invention discloses a high-efficiency painting device for the inner wall of a steel pipe for building construction. According to the invention, through the ingenious arrangement of the annular guide rail, the first annular guide rail and the motor, the steel pipe which is placed between the two opposite conical cylinders through the area between the n-shaped cover body and the driven shaft can be automatically coated, and workers only need to continuously place the steel pipe between the two opposite conical cylinders through the area between the n-shaped cover body and the driven shaft, so that the production line type working process of coating the inner wall of the steel pipe is realized, the traditional working process of coating the inner wall of the steel pipe by manpower is effectively replaced, the device directly fills paint into the steel pipe, and the process of coating the inner wall of the steel pipe in an all-round and uniform manner is realized by rotating the steel pipe, and the working process can ensure that the inner wall of the steel pipe is coated with the paint in all-round and without leaving the paint, and the condition that the inner wall of the steel pipe is not sprayed in place is avoided.)

1. A high-efficiency painting device for the inner wall of a steel pipe for building construction comprises a base (1) and is characterized in that; the automatic feeding device is characterized in that supporting plates (2) are symmetrically fixed on two sides of the top surface of the base (1) respectively, the top ends of the two supporting plates (2) are fixed with a same n-shaped cover body (6), first vertical rods (7) are symmetrically fixed at two ends of the inner top surface of the n-shaped cover body (6), the bottom ends of the two first vertical rods (7) are fixed with a same guide plate (55), a trough (3) is fixed at the center of the top surface of the base (1) between the two supporting plates (2), a mounting plate (4) is fixedly mounted on the side wall of one of the supporting plates (2), a motor (5) is fixedly mounted on the top surface of the mounting plate (4), a driving shaft (8) and a driven shaft (9) are symmetrically arranged between the two supporting plates (2), two ends of the driving shaft (8) and two ends of the driven shaft (9) penetrate through the two supporting plates (2) respectively and are fixed with limiting rings respectively, and the driving shaft (8) and the driven shaft (9) are in contact with the supporting plates (2) and are in equal rotational connection, and one end of the driving shaft (8) is fixedly connected with an output shaft of the motor (5), two belt pulleys (10) are symmetrically and fixedly sleeved on the driving shaft (8) and the driven shaft (9) respectively, two corresponding belt pulleys (10) on the driving shaft (8) and the driven shaft (9) are in transmission connection through a belt (12), an L-shaped base plate (16) is attached to the bottom surface of an upper belt of the belt (12), the bottom end of a vertical plate of the L-shaped base plate (16) is fixedly connected with the top end of the supporting plate (2), a funnel-shaped material receiving box (11) is arranged between the two belts (12), an opening is arranged at the bottom of the funnel-shaped material receiving box (11), a plurality of fixing rods (19) are fixed at the bottom ends of two sides of the funnel-shaped material receiving box (11) respectively, the bottom ends of the fixing rods (19) are fixedly connected with the bottom end of the material tank (3), and an annular guide rail (13) is arranged between each belt (12) and the adjacent and the nearest supporting plate (2), the annular guide rail (13) is fixedly connected with the side wall of the support plate (2) and the inner wall of the n-shaped cover body (6) through a plurality of connecting rods (22), an annular sliding groove is formed in the outer ring surface of the annular guide rail (13), the annular guide rail (13) is formed by splicing a linear guide rail (13-3), a convex guide rail (13-2) and two arc-shaped guide rails (13-1), the two arc-shaped guide rails (13-1) are respectively sleeved on the driving shaft (8) and the driven shaft (9), the axial leads of the two arc-shaped guide rails (13-1) are respectively consistent with the axial leads of the driving shaft (8) and the driven shaft (9), the two ends of the convex guide rail (13-2) are respectively fixedly connected with the opposite ends of the top ends of the two arc-shaped guide rails (13-1), the two ends of the linear guide rail (13-3) are respectively fixedly connected with the opposite ends of the bottom ends of the two arc-shaped guide rails (13-1), a first annular guide rail (23) is arranged between each belt (12) and the nearest adjacent annular guide rail (13), annular sliding grooves are formed in opposite side walls of the two first annular guide rails (23), the first annular guide rails (23) are formed by splicing a first arc-shaped guide rail (23-1), a second arc-shaped guide rail (23-2), a first step-shaped guide rail (23-3) and a second step-shaped guide rail (23-4), the first arc-shaped guide rail (23-1) and the second arc-shaped guide rail (23-2) are sleeved on the driving shaft (8) and the driven shaft (9) respectively, the axial lines of the first arc-shaped guide rail (23-1) and the second arc-shaped guide rail (23-2) are consistent with the axial lines of the driving shaft (8) and the driven shaft (9) respectively, and two ends of the first step-shaped guide rail (23-3) are respectively consistent with the first arc-shaped guide rail (23-1) and the second arc-shaped guide rail (23-2) The top end of the belt is fixedly connected with the opposite end, the two ends of the second stepped guide rail (23-4) are respectively fixedly connected with the opposite ends of the bottom ends of the first curved guide rail (23-1) and the second curved guide rail (23-2), the diameter of the first curved guide rail (23-1) is larger than that of the second curved guide rail (23-2), the first annular guide rail (23) is fixedly connected with the side wall of the support plate (2) and the inner wall of the n-shaped cover body (6) through a plurality of first connecting rods (24), a plurality of fixing plates (17) are uniformly fixed on the outer ring surface of the belt (12) through fixing bolts, a groove for embedding a nut of the fixing bolt is formed in the inner ring surface of the belt (12), a vertical plate (18) is fixed on each fixing plate (17), a through hole (20) is formed in the side wall of each vertical plate (18), and a push rod (21) transversely penetrates through the through hole (20), one end of the push rod (21) is fixed with a stop block (14), the other end of the push rod (21) is fixed with a fixed block (26), the push rod (21) is sleeved with a sleeve (25) in a sliding manner, a T-shaped sliding block (15) is fixed on the outer ring surface of the sleeve (25), the T-shaped sliding block (15) is embedded into a sliding groove on the annular guide rail (13) and is connected with the annular guide rail in a sliding manner, a spring (39) is fixedly arranged between the sleeve (25) and the fixed block (26), the spring (39) is sleeved on the push rod (21), the other side of the fixed block (26) is fixed with a conical cylinder (27), a first conical cylinder (30) is sleeved in the conical cylinder (27), a rubber layer is fixedly attached to the inner ring surface of the first conical cylinder (30), a dovetail ring (29) is fixedly sleeved on the outer ring surface of the first conical cylinder (30), and an annular dovetail groove (28) is formed in the inner ring surface of the conical cylinder (27), the dovetail ring (29) is embedded into the annular dovetail groove (28) and is rotationally connected with the dovetail ring, a plurality of sealing rings (31) are arranged between the inner ring surface of the conical cylinder (27) and the outer ring surface of the first conical cylinder (30), the sealing rings (31) are fixedly sleeved on the first conical cylinder (30), the outer ring surface of the sealing rings (31) is attached to the inner ring surface of the conical cylinder (27), one side of the first conical cylinder (30) extends out of the conical cylinder (27) and is fixed with a cylinder (32), the cylinder (32) is communicated with the first conical cylinder (30), a transverse plate (37) is fixed at one end of the outer ring surface of the conical cylinder (27) facing the belt (12), an arc-shaped supporting plate (38) is fixed on the transverse plate (37), a first mounting plate (33) is fixed on the outer ring surface of the conical cylinder (27), a shaft (34) is fixed on the side wall of the first mounting plate (33), a rubber wheel (35) is sleeved on the shaft (34), rubber wheel (35) and axle (34) swivelling joint, rubber wheel (35) both sides are laminated respectively first spacing collar (36), first spacing collar (36) fixed cover is on axle (34), rubber wheel (35) are laminated with drum (32) outer lane face towards drum (32) one end, cone (27) are fixed with connecting pipe (40) towards riser (18) one side, connecting pipe (40) and cone (27) intercommunication, the connecting pipe (40) other end is fixed with square guide bar (53), sliding sleeve has square guide tube (54) on square guide bar (53), square guide tube (54) and riser (18) fixed connection, be fixed with first connecting pipe (41) on connecting pipe (40) outer lane face, first connecting pipe (41) and connecting pipe (40) intercommunication, first connecting pipe (41) other end fixed connection has hose (42), the other end of the hose (42) is fixedly connected with an L-shaped connecting pipe (43), a one-way valve (45) is fixedly arranged in the L-shaped connecting pipe (43), the other end of the L-shaped connecting pipe (43) is fixedly connected with a conical pipe (44), a first one-way valve (46) is fixedly arranged in the conical pipe (44), a piston cylinder (49) is fixedly arranged at one end, facing the outer ring surface of the belt (12), of the conical pipe (44), the piston cylinder (49) is communicated with the conical pipe (44), a piston plate (47) is slidably arranged in the piston cylinder (49), a push-pull rod (50) is fixedly arranged at one end, facing the outer ring surface of the belt (12), of the piston plate (47), a second connecting rod (51) is fixedly arranged after the other end of the push-pull rod (50) extends out of the piston cylinder (49), a first T-shaped sliding block (52) is fixedly arranged at the other end of the second connecting rod (51), and the first T-shaped sliding block (52) is embedded into a sliding groove on the first annular guide rail (23) and is slidably connected with the same, the piston cylinder (49) is fixedly connected with the outer wall of the square guide cylinder (54) through a plurality of third connecting rods (48).

2. The efficient painting device for the inner wall of the steel pipe for building construction as claimed in claim 1, wherein: the base (1) and the support plate (2) are fixedly connected by welding.

3. The efficient painting device for the inner wall of the steel pipe for building construction as claimed in claim 1, wherein: the motor (5) is electrically connected with an external power supply through a wire.

4. The efficient painting device for the inner wall of the steel pipe for building construction as claimed in claim 1, wherein: the diameter difference between the first arc-shaped guide rail (23-1) and the second arc-shaped guide rail (23-2) is 20-30 cm.

Technical Field

The invention relates to the field of building construction, in particular to an efficient painting device for an inner wall of a steel pipe for building construction.

Background

The application field of steel pipe is more extensive, in some domestic water, oil, building construction and the aspect of natural gas transport etc. have extensive application, when transporting liquid medium through the steel pipe, need carry out anticorrosion treatment to the steel pipe inner wall, the mesh of steel pipe inner wall anticorrosion is realized through spraying chemical paint vehicle to the present time mostly, at present, owing to receive the narrow and small restriction in steel pipe inner space, inconvenient when spraying material to the steel pipe inner wall, the workman is difficult to the work of spraying paint to the steel pipe inner wall, lead to the work progress slow, inefficiency, and the spraying effect of inner wall is difficult to observe when the spraying, cause the condition that the spraying of inner wall somewhere is not in place to take place easily, lead to the phenomenon that the rust and corrosion appears in the steel pipe application process at later stage like this very easily.

Therefore, it is necessary to design a high-efficiency painting device for the inner wall of the steel pipe for building construction to solve the above technical problems.

Disclosure of Invention

In order to solve the problems, the invention provides a high-efficiency painting device for the inner wall of a steel pipe for building construction.

The invention is realized by the following technical scheme:

a high-efficiency painting device for inner walls of steel pipes for building construction comprises a base, wherein supporting plates are symmetrically fixed on two sides of the top surface of the base respectively, the top ends of the two supporting plates are fixed with a same n-shaped cover body, first vertical rods are symmetrically fixed at two ends of the inner top surface of the n-shaped cover body, the bottom ends of the two first vertical rods are fixed with a same guide plate, a trough is fixed at the center of the top surface of the base between the two supporting plates, a mounting plate is fixedly mounted on the side wall of one of the supporting plates, a motor is fixedly mounted on the top surface of the mounting plate, a driving shaft and a driven shaft are symmetrically arranged between the two supporting plates, two ends of the driving shaft and two ends of the driven shaft penetrate through the two supporting plates respectively and are fixed with a limiting ring respectively, the contact parts of the driving shaft and the driven shaft with the supporting plates are all rotatably connected, one end of the driving shaft is fixedly connected with an output shaft of the motor, and two belt pulleys are symmetrically fixed on the driving shaft and the driven shaft respectively, the belt conveyor is characterized in that two corresponding belt pulleys on the driving shaft and the driven shaft are connected through belt transmission, an L-shaped base plate is attached to the bottom surface of an upper belt of the belt, the bottom end of a vertical plate of the L-shaped base plate is fixedly connected with the top end of a supporting plate, a funnel-shaped material receiving box is arranged between the two belts, an opening is arranged at the bottom of the funnel-shaped material receiving box, a plurality of fixing rods are fixedly arranged at the bottom ends of two sides of the funnel-shaped material receiving box respectively, the bottom ends of the fixing rods are fixedly connected with the bottom end of the material receiving box, an annular guide rail is arranged between each belt and an adjacent and nearest supporting plate of each belt, the annular guide rail is fixedly connected with the side wall of the supporting plate and the inner wall of the n-shaped cover body through a plurality of connecting rods, an annular sliding groove is formed in the outer ring surface of the annular guide rail, the annular guide rail is formed by splicing a linear guide rail, a convex guide rail and two arc guide rails are respectively sleeved on the driving shaft and the driven shaft, and the axial lead of two arc guide rails is unanimous with the axial lead of driving shaft and driven shaft respectively, protrusion guide rail both ends respectively with two arc guide rail top relative one end fixed connection, straight line guide rail both ends respectively with two arc guide rail bottom relative one end fixed connection, all be equipped with first annular guide rail between every belt and its adjacent nearest annular guide rail, annular spout has been seted up respectively on two first annular guide rail relative lateral walls, first annular guide rail is formed by first arc guide rail, second arc guide rail, first trapezoidal guide rail and the concatenation of second trapezoidal guide rail, first arc guide rail and second arc guide rail overlap respectively on driving shaft and driven shaft, and the axial lead of first arc guide rail and second arc guide rail is unanimous with the axial lead of driving shaft and driven shaft respectively, first trapezoidal guide rail both ends respectively with first arc guide rail and the relative one end fixed connection of second arc guide rail top end department The fixed connection, the both ends of the second step ladder guide rail are respectively fixedly connected with the opposite ends of the bottom ends of the first arc guide rail and the second arc guide rail, the diameter of the first arc guide rail is larger than that of the second arc guide rail, the first annular guide rail is fixedly connected with the side wall of the support plate and the inner wall of the n-shaped cover body through a plurality of first connecting rods, a plurality of fixing plates are uniformly fixed on the outer surface of the belt through fixing bolts, a groove for embedding a nut of the fixing bolt is formed on the inner surface of the belt, a vertical plate is fixed on each fixing plate, a through hole is formed on the side wall of the vertical plate, a push rod is transversely arranged in the through hole, a stop block is fixed at one end of the push rod, a fixing block is fixed at the other end of the push rod, a sleeve is slidably sleeved on the push rod, a T-shaped slide block is fixed on the outer surface of the sleeve, and the T-shaped slide block is embedded in a chute on the annular guide rail and is slidably connected with the sleeve, the spring is fixedly arranged between the sleeve and the fixed block, the spring is sleeved on the push rod, a conical cylinder is fixed on the other side of the fixed block, a first conical cylinder is sleeved in the conical cylinder, a rubber layer is fixedly attached to the inner ring surface of the first conical cylinder, a dovetail ring is fixedly sleeved on the outer ring surface of the first conical cylinder, an annular dovetail groove is formed in the inner ring surface of the conical cylinder, the dovetail ring is embedded in the annular dovetail groove and is in rotary connection with the annular dovetail groove, a plurality of sealing rings are arranged between the inner ring surface of the conical cylinder and the outer ring surface of the first conical cylinder, the sealing rings are fixedly sleeved on the first conical cylinder, the outer ring surface of the sealing rings is attached to the inner ring surface of the conical cylinder, the conical cylinder is extended out on one side of the first conical cylinder and is fixed with a cylinder, the cylinder is communicated with the first conical cylinder, a transverse plate is fixed on one end of the conical cylinder, which faces towards the outer ring surface of the belt, an arc-shaped supporting plate is fixed on the transverse plate, a first mounting plate is fixed on the outer ring surface of the conical barrel, a shaft is fixed on the side wall of the first mounting plate, a rubber wheel is sleeved on the shaft and is rotationally connected with the shaft, first limiting rings are respectively attached to two sides of the rubber wheel, the first limiting rings are fixedly sleeved on the shaft, the rubber wheel is attached to the outer ring surface of the cylindrical barrel towards one end of the cylindrical barrel, a connecting pipe is fixed on one side of the conical barrel towards the vertical plate and is communicated with the conical barrel, a square guide rod is fixed at the other end of the connecting pipe, a square guide barrel is slidably sleeved on the square guide rod and is fixedly connected with the vertical plate, a first connecting pipe is fixed on the outer ring surface of the connecting pipe and is communicated with the connecting pipe, and a hose is fixedly connected to the other end of the first connecting pipe, the other end of the hose is fixedly connected with an L-shaped connecting pipe, a one-way valve is fixedly arranged in the L-shaped connecting pipe, the other end of the L-shaped connecting pipe is fixedly connected with a conical pipe, a first one-way valve is fixedly arranged in the conical pipe, a piston cylinder is fixedly arranged at one end, facing the outer ring surface of the belt, of the conical pipe, the piston cylinder is communicated with the conical pipe, a piston plate is arranged in the piston cylinder in a sliding mode, a push-pull rod is fixedly arranged at one end, facing the outer ring surface of the belt, of the piston plate, a second connecting rod extends out of the piston cylinder, a first T-shaped sliding block is fixedly arranged at the other end of the second connecting rod, the first T-shaped sliding block is embedded in a sliding groove in the first annular guide rail and is connected with the first annular guide rail in a sliding mode, and the piston cylinder is fixedly connected with the outer wall of the square guide cylinder through a plurality of third connecting rods.

Preferably, the base and the support plate are fixedly connected by welding.

Preferably, the motor is electrically connected with an external power supply through a wire.

Preferably, the diameter difference between the first arc-shaped guide rail and the second arc-shaped guide rail is 20-30 cm.

Compared with the prior art, the invention has the beneficial effects that: the invention can automatically perform coating work on the steel pipe which is arranged between the two opposite conical cylinders through the area between the n-shaped cover body and the driven shaft by skillfully arranging the annular guide rail, the first annular guide rail and the motor, a worker only needs to continuously place the steel pipe between the two opposite conical cylinders through the area between the n-shaped cover body and the driven shaft, thereby realizing the production line type working process of the coating on the inner wall of the steel pipe, improving the efficiency of the coating on the inner wall of the steel pipe, effectively replacing the traditional working process of manually coating the inner wall of the steel pipe, thereby effectively reducing the labor intensity of workers, and the device directly fills the paint into the steel pipe, the process of all-round uniform coating of the inner wall of the steel pipe is realized by rotating the steel pipe, the working process can ensure that the inner wall of the steel pipe is coated with all-round coating without leaving, and the condition that the inner wall of the steel pipe is not sprayed in place at a certain position is avoided.

Drawings

FIG. 1 is a block diagram of the structure of the present invention;

FIG. 2 is a side cross-sectional view of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged view of portion B of FIG. 1 in accordance with the present invention;

figure 5 is a perspective view of the looped track and the first looped track of figure 1 in accordance with the present invention.

In the figure: the device comprises a base 1, a supporting plate 2, a trough 3, a mounting plate 4, a motor 5, an n-shaped cover body 6, a first vertical rod 7, a driving shaft 8, a driven shaft 9, a belt pulley 10, a funnel-shaped material receiving box 11, a belt 12, an annular guide rail 13, an arc-shaped guide rail 13-1, a convex guide rail 13-2, a linear guide rail 13-3, a stop 14, a T-shaped sliding block 15, an L-shaped base plate 16, a fixing plate 17, a vertical plate 18, a fixing rod 19, a through hole 20, a push rod 21, a connecting rod 22, a first annular guide rail 23, a first arc-shaped guide rail 23-1, a second arc-shaped guide rail 23-2, a first stepped guide rail 23-3, a second stepped guide rail 23-4, a first connecting rod 24, a sleeve 25, a fixing block 26, a conical cylinder 27, an annular dovetail groove 28, a dovetail ring 29, a first conical cylinder 30, a sealing ring 31, a cylinder 32, a first mounting plate 33, a second mounting plate 33, a first mounting plate and a second mounting plate, The device comprises a shaft 34, a rubber wheel 35, a first limiting ring 36, a transverse plate 37, an arc-shaped supporting plate 38, a spring 39, a connecting pipe 40, a first connecting pipe 41, a hose 42, an L-shaped connecting pipe 43, a conical pipe 44, a one-way valve 45, a first one-way valve 46, a piston plate 47, a third connecting rod 48, a piston cylinder 49, a push-pull rod 50, a second connecting rod 51, a first T-shaped sliding block 52, a square guide rod 53, a square guide cylinder 54 and a guide plate 55.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, 2, 3, 4 and 5, the efficient painting device for the inner wall of the steel pipe for building construction comprises a base 1, wherein support plates 2 are symmetrically fixed on two sides of the top surface of the base 1 respectively, the top ends of the two support plates 2 are fixed with a same n-shaped cover body 6, first vertical rods 7 are symmetrically fixed at two ends of the inner top surface of the n-shaped cover body 6, the bottom ends of the two first vertical rods 7 are fixed with a same guide plate 55, a material groove 3 is fixed at the center of the top surface of the base 1 between the two support plates 2, a mounting plate 4 is fixedly mounted on the side wall of one of the support plates 2, a motor 5 is fixedly mounted on the top surface of the mounting plate 4, a driving shaft 8 and a driven shaft 9 are symmetrically arranged between the two support plates 2, two ends of the driving shaft 8 and two ends of the driven shaft 9 penetrate through the two support plates 2 respectively and are fixed with a limiting ring respectively, and the contact parts of the driving shaft 8 and the driven shaft 9 with the support plates 2 are rotatably connected, and one end of a driving shaft 8 is fixedly connected with an output shaft of a motor 5, two belt pulleys 10 are symmetrically and fixedly sleeved on the driving shaft 8 and a driven shaft 9 respectively, the driving shaft 8 is in transmission connection with the two corresponding belt pulleys 10 on the driven shaft 9 through a belt 12, an L-shaped cushion plate 16 is attached to the bottom surface of an upper layer belt of the belt 12, the bottom end of a vertical plate of the L-shaped cushion plate 16 is fixedly connected with the top end of a supporting plate 2, a funnel-shaped material receiving box 11 is arranged between the two belts 12, an opening is arranged at the bottom of the funnel-shaped material receiving box 11, a plurality of fixing rods 19 are fixed at two sides of the funnel-shaped material receiving box 11 respectively, the bottom ends of the fixing rods 19 are fixedly connected with the bottom end in a material groove 3, an annular guide rail 13 is arranged between each belt 12 and an adjacent nearest supporting plate 2, the annular guide rail 13 is fixedly connected with the side wall of the supporting plate 2 and the inner wall of an n-shaped cover body 6 through a plurality of connecting rods 22, the outer ring surface of the annular guide rail 13 is provided with an annular sliding groove, the annular guide rail 13 is formed by splicing a linear guide rail 13-3, a convex guide rail 13-2 and two arc-shaped guide rails 13-1, the two arc-shaped guide rails 13-1 are respectively sleeved on the driving shaft 8 and the driven shaft 9, the axial lines of the two arc-shaped guide rails 13-1 are respectively consistent with the axial lines of the driving shaft 8 and the driven shaft 9, two ends of the convex guide rail 13-2 are respectively and fixedly connected with the opposite ends of the top ends of the two arc-shaped guide rails 13-1, two ends of the linear guide rail 13-3 are respectively and fixedly connected with the opposite ends of the bottom ends of the two arc-shaped guide rails 13-1, a first annular guide rail 23 is arranged between each belt 12 and the nearest adjacent annular guide rail 13, and the opposite side walls of the two first annular guide rails 23 are respectively provided with an annular sliding groove, the first annular guide rail 23 is formed by splicing a first arc-shaped guide rail 23-1, a second arc-shaped guide rail 23-2, a first step-shaped guide rail 23-3 and a second step-shaped guide rail 23-4, the first arc-shaped guide rail 23-1 and the second arc-shaped guide rail 23-2 are respectively sleeved on the driving shaft 8 and the driven shaft 9, the axial lines of the first arc-shaped guide rail 23-1 and the second arc-shaped guide rail 23-2 are respectively consistent with the axial lines of the driving shaft 8 and the driven shaft 9, two ends of the first step-shaped guide rail 23-3 are respectively fixedly connected with the opposite ends at the top ends of the first arc-shaped guide rail 23-1 and the second arc-shaped guide rail 23-2, two ends of the second step-shaped guide rail 23-4 are respectively fixedly connected with the opposite ends at the bottom ends of the first arc-shaped guide rail 23-1 and the second arc-shaped guide rail 23-2, the diameter of the first arc-shaped guide rail 23-1 is larger than that of the second arc-shaped guide rail 23-2, the first annular guide rail 23 is fixedly connected with the side wall of the support plate 2 and the inner wall of the n-shaped cover 6 through a plurality of first connecting rods 24, a plurality of fixing plates 17 are uniformly fixed on the outer ring surface of the belt 12 through fixing bolts, a groove for embedding a nut of the fixing bolt is formed in the inner ring surface of the belt 12, a vertical plate 18 is fixed on each fixing plate 17, a through hole 20 is formed in the side wall of the vertical plate 18, a push rod 21 transversely penetrates through the through hole 20, a stop block 14 is fixed at one end of the push rod 21, a fixing block 26 is fixed at the other end of the push rod 21, a sleeve 25 is slidably sleeved on the push rod 21, a T-shaped slide block 15 is fixed on the outer ring surface of the sleeve 25, and the T-shaped slide block 15 is embedded in a sliding groove on the annular guide rail 13 and is slidably connected with the annular guide rail, a spring 39 is fixedly arranged between the sleeve 25 and the fixed block 26, the spring 39 is sleeved on the push rod 21, a conical cylinder 27 is fixed on the other side of the fixed block 26, a first conical cylinder 30 is sleeved in the conical cylinder 27, a rubber layer is fixedly attached to the inner ring surface of the first conical cylinder 30, a dovetail ring 29 is fixedly sleeved on the outer ring surface of the first conical cylinder 30, an annular dovetail groove 28 is formed in the inner ring surface of the conical cylinder 27, the dovetail ring 29 is embedded in the annular dovetail groove 28 and is rotationally connected with the annular dovetail groove, a plurality of sealing rings 31 are arranged between the inner ring surface of the conical cylinder 27 and the outer ring surface of the first conical cylinder 30, the sealing rings 31 are fixedly sleeved on the first conical cylinder 30, the outer ring surface of the sealing rings 31 is attached to the inner ring surface of the conical cylinder 27, one side of the first conical cylinder 30 extends out of the conical cylinder 27 and is fixedly provided with a cylinder 32, the cylinder 32 is communicated with the first conical cylinder 30, a transverse plate 37 is fixed at one end of the conical cylinder 27 facing the outer ring surface of the belt 12, an arc-shaped supporting plate 38 is fixed on the transverse plate 37, a first mounting plate 33 is fixed on the outer ring surface of the conical cylinder 27, a shaft 34 is fixed on the side wall of the first mounting plate 33, a rubber wheel 35 is sleeved on the shaft 34, the rubber wheel 35 is rotatably connected with the shaft 34, first limiting rings 36 are respectively attached to two sides of the rubber wheel 35, the first limiting rings 36 are fixedly sleeved on the shaft 34, one end of the rubber wheel 35 facing the cylinder 32 is attached to the outer ring surface of the cylinder 32, a connecting pipe 40 is fixed at one side of the conical cylinder 27 facing the vertical plate 18, the connecting pipe 40 is communicated with the conical cylinder 27, a square guide rod 53 is fixed at the other end of the connecting pipe 40, a square guide cylinder 54 is slidably sleeved on the square guide rod 53, and the square guide cylinder 54 is fixedly connected with the vertical plate 18, a first connecting pipe 41 is fixed on the outer ring surface of the connecting pipe 40, the first connecting pipe 41 is communicated with the connecting pipe 40, a hose 42 is fixedly connected to the other end of the first connecting pipe 41, an L-shaped connecting pipe 43 is fixedly connected to the other end of the hose 42, a one-way valve 45 is fixedly arranged in the L-shaped connecting pipe 43, a conical pipe 44 is fixedly connected to the other end of the L-shaped connecting pipe 43, a first one-way valve 46 is fixedly arranged in the conical pipe 44, a piston cylinder 49 is fixed at one end of the conical pipe 44, which faces the outer ring surface of the belt 12, the piston cylinder 49 is communicated with the conical pipe 44, a piston plate 47 is slidably arranged in the piston cylinder 49, a push-pull rod 50 is fixed at one end of the piston plate 47, which faces the outer ring surface of the belt 12, a second connecting rod 51 is fixed at the other end of the push-pull rod 50, which extends out of the piston cylinder 49, and a first T-shaped slider 52 is fixed at the other end of the second connecting rod 51, the first T-shaped sliding block 52 is embedded in the sliding groove of the first annular guide rail 23 and is slidably connected with the first annular guide rail, and the piston cylinder 49 is fixedly connected with the outer wall of the square guide cylinder 54 through a plurality of third connecting rods 48.

The base 1 and the supporting plate 2 are fixedly connected by welding.

The motor 5 is electrically connected with an external power supply through a lead.

The diameter difference between the first arc-shaped guide rail 23-1 and the second arc-shaped guide rail 23-2 is 20-30 cm.

The working principle is as follows: when the invention is used, firstly, the motor 5 is started, when the motor 5 runs, an output shaft of the motor 5 drives the driving shaft 8 to slowly rotate clockwise, the driving shaft 8 synchronously drives the two belts 12 to slowly drive clockwise through the two belt pulleys 10 fixed on the driving shaft 8, each conical cylinder 27 and the piston cylinder 49 synchronously move along with the belts 12, when the piston cylinder 49 winds around the lower end of the driving shaft 8 along with the belts 12, the conical pipe 44 on the piston cylinder 49 extends into the material groove 3, and the bottom of the conical pipe 44 is not arranged in the paint material which is added in the material groove 3 in advance (as shown in figure 2), along with the continuous rotation of the belts 12, the piston cylinder 49 continuously moves towards the driven roller 9, in the process, the first T-shaped sliding block 52 synchronously moves along with the piston cylinder 49, so that the first T-shaped sliding block 52 passes through the folding angle of the second step-shaped guide rail 23-4 in the process of moving along with the piston cylinder 49 towards the direction 9, so that when the piston plate 47 originally located at the bottom of the piston cylinder 49 is pulled upwards by the first T-shaped slide block 52, and the piston plate 47 is pulled upwards by the first T-shaped slide block 52, through the arrangement of the check valve 45 and the first check valve 46, the piston plate 47 sucks paint in the material tank 3 into the piston cylinder 49 through the tapered tube 44, so that as the belt 12 continues to rotate, the tapered tube 44 and the paint-sucked piston cylinder 49 move to the upper end of the driven shaft 9 around the driven shaft 9, and at this time, through the area between the n-shaped cover 6 and the driven shaft 9, the steel tube is placed between two corresponding tapered cylinders 27 on the two belts 12, and is smoothly seated on two arc-shaped support plates 38 between the two tapered cylinders 27, so that as the belt 12 continues to rotate, the two tapered cylinders 27 are brought into the n-shaped cover 6, and when the belt 12 drives the tapered cylinders 27 to move between two protruding guide rails 13-2 of the two annular guide rails 13, the T-shaped slide block 15 slides to the protruded guide rail 13-2 of the annular guide rail 13, so that the sleeve 25 moves along with the T-shaped slide block 15 towards the vertical plate 18, at this time, the sleeve 25 pushes the spring 39, the spring 39 pushes the conical cylinder 27 through the fixing block 26, at this time, the two conical cylinders 27 approach each other, the steel pipe originally placed on the two arc-shaped supporting plates 38 is clamped by the two first conical cylinders 30 in the two conical cylinders 27, the axial lines of the ports at the two ends of the steel pipe are finally aligned with the axial line of the first conical cylinder 30 under the action of the two springs 39, so that the steel pipe is clamped by the two first conical cylinders 30, and along with the continuous rotation of the belt 12, the first T-shaped slide block 52 passes through the first stepped guide rail 23-3, so that the piston plate 47 is pushed towards the conical pipe 44 by the first T-shaped slide block 52, and the paint in the piston cylinder 49 sequentially passes through the L-shaped connecting pipe 43, The hose 42, the first connecting pipe 41, the connecting pipe 40 and the conical cylinder 27 are led into the steel pipe, the paint vehicle entering the steel pipe is immersed at the bottom of the inner cavity of the paint vehicle, because the rubber layer on the inner circle surface of the first conical cylinder 30 is arranged, and under the extrusion action of the spring 39, the ports at the two ends of the steel pipe are respectively and tightly attached to the rubber layers in the two first conical cylinders 30, the paint vehicle in the steel pipe can be effectively prevented from leaking out through the ports, and at this time, because the rubber wheel 35 at the top of the n-shaped cover body 6 is arranged, when the conical cylinder 27 enters the n-shaped cover body 6, the rubber wheel 35 at the top is attached to the bottom surface of the guide plate 55, and along with the rotation of the belt 12, the rubber wheel 35 can roll against the bottom surface of the guide plate 55, the rubber wheel 35 can drive the first conical cylinder 30 to slowly roll through the cylinder 32, and the two first conical cylinders 30 can synchronously drive the steel pipe to rotate when slowly roll, thus, when the steel pipe rotates, paint immersed at the bottom end in the inner cavity of the steel pipe can uniformly coat the inner wall of the steel pipe, the T-shaped sliding block 15 slides out of the protruding part of the protruding guide rail 13-2 along with the continuous rotation of the belt 12, the T-shaped sliding block 15 drives the sleeve 25 to return to the original position at the moment, the sleeve 25 does not extrude the spring 39, meanwhile, the T-shaped sliding block 15 drives the conical cylinders 27 to return to the original position along with the sliding of the T-shaped sliding block 15 out of the protruding part on the annular guide rail 13, the distance between the two first conical cylinders 30 is increased at the moment, the steel pipe clamped between the two first conical cylinders 30 can fall on the two arc-shaped supporting plates 38 again, the redundant paint in the inner cavity of the steel pipe can flow down through ports at the two ends of the steel pipe, the fallen paint can flow into the funnel-shaped material receiving box 11, and finally falls into the material groove 3 through the opening at the bottom of the funnel-shaped material receiving box 11, the paint remained on the rubber layer on the inner wall of the first conical cylinder 30 also flows into the material groove 3 through the funnel-shaped material receiving box 11, and the recycling of the redundant paint is realized. Therefore, when the two first conical cylinders 30 move out of the n-shaped cover body 6 along with the rotation of the belt 12, the inner wall of the steel pipe at the moment finishes coating work, and a worker can take away the steel pipe loaded on the two arc-shaped supporting plates 38, and along with the transmission of the belt 12, the steel pipe can be continuously placed between the two corresponding conical cylinders 27 entering the area between the n-shaped cover body 6 and the driven shaft 9 through the area between the n-shaped cover body 6 and the driven shaft 9, so that the flow line type working process of the coating on the inner wall of the steel pipe is realized, and the working efficiency is effectively improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.