Pipeline anti-corrosion coating equipment for electrical fire safety engineering

Abstract

The invention discloses pipeline anti-corrosion coating equipment for electrical fire safety engineering, which comprises a center rod, a driving mechanism and a coating unit, the coating unit comprises two coating modules transversely and symmetrically arranged on the front side of the center rod, the two coating modules are alternately arranged in the vertical direction, connecting rods are symmetrically hinged to the left end and the right end of the center rod, and the connecting rods are connected with the driving mechanism. The front ends of the two connecting rods are connected with the coating modules on the same side respectively, the tail ends of the two connecting rods are connected with the driving mechanism, and the driving mechanism can drive the two coating modules to synchronously and reversely rotate around the left end and the right end of the center rod respectively; efficient and full-wrapping anti-corrosion coating of the pipeline is achieved through the automatic coating equipment, the full-wrapping anti-corrosion coating equipment is particularly suitable for the pipeline leaning against the wall, and the construction efficiency and quality are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of anti-corrosion coating of wall-mounted pipelines, and in particular relates to an anti-corrosion coating device for pipelines of electrical fire safety engineering. Background Art

[0002] Pipeline anti-corrosion coating is an important process in electrical fire safety engineering. It aims to prevent performance degradation and safety hazards caused by corrosion, aging, etc. by applying a protective coating on the surface of the pipeline. During long-term use, pipelines will be affected by various environmental factors, such as moisture, oxygen, chemicals, etc. These factors will cause corrosion on the surface of the pipeline, affecting its mechanical properties and sealing. In particular, pipelines in electrical fire safety engineering, once corroded, may cause serious safety accidents, so it is necessary to regularly inspect and apply anti-corrosion coating on the pipeline to extend the service life of the pipeline, ensure the safe operation of the system, and promptly discover and deal with pipeline problems before they become serious, avoiding the high cost of overhauling or replacing the pipeline.

[0003] The existing pipeline anti-corrosion coating method mainly relies on manual coating, which has many defects, especially when dealing with pipelines designed to be close to the wall. Since most existing pipelines are designed to be fixed against the wall, the space on the wall side of the pipeline is narrow, which makes it difficult to fully and effectively coat the pipeline in the narrow space when applying protective coating to the pipeline on the wall side, affecting the anti-corrosion effect. In addition, the narrow space limits the range of activities of operators, increases the difficulty and time of construction, and reduces the construction efficiency. Summary of the invention

[0004] In view of the defects and problems existing in the existing anti-corrosion coating of wall-mounted pipes, the present invention provides a pipeline anti-corrosion coating equipment for electrical fire safety engineering, which aims to achieve efficient and full-wrapped anti-corrosion coating of pipelines through automated coating equipment, and is particularly suitable for wall-mounted pipes to improve construction efficiency and quality.

[0005] The solution adopted by the present invention to solve its technical problems is: a pipeline anti-corrosion coating equipment for electrical fire safety engineering, including a center rod, a driving mechanism and a coating unit, the coating unit includes two coating modules that are laterally symmetrically arranged on the front side of the center rod, and the two coating modules are alternately arranged vertically. The left and right ends of the center rod are symmetrically hinged with connecting rods, and the front ends of the two connecting rods are respectively connected to the coating modules on the same side, and the tail ends of the two connecting rods are connected to the driving mechanism, and the two coating modules are synchronously rotated in opposite directions around the left and right ends of the center rod respectively through the driving mechanism; the coating module includes a coating tensioning device, an arc frame, an elastic hinge assembly, a coating belt, a feeding mechanism and a shell with an opening, the shell is fixedly connected to the adjacent side connecting rod, and the opening of the shell faces the coating module on the other side; the front and rear sides of the shell are symmetrically provided with arc frames, and the inner ends of the two arc frames are respectively connected to the coating modules on the other side. The elastic hinge assembly is hingedly installed in the shell, and the outer end of the arc frame extends out of the shell through the opening, and the elastic hinge assembly will drive the outer ends of the two arc frames to remain away from each other in a natural state; the coating tensioning device includes a slide seat, a dyeing roller group, a discharge roller and a top spring, the slide seat is installed in the shell between the two arc frames along the transverse sliding, the dyeing roller group is matched and installed in the slide seat, and is transmission-connected with a driving assembly, the discharge roller is rotatably installed in the slide seat, and a cavity is provided in the discharge roller, and the cavity is connected with the feeding mechanism, the discharge roller is transmission-connected with the dyeing roller group, and the discharge roller is in contact with the dyeing roller group, and a discharge hole communicating with the cavity is arranged on the outer ring surface of the discharge roller; the coating belt is sleeved on the outside of the two arc frames, and the top spring is installed between the shell and the slide seat, and the top spring pushes the slide seat in a natural state, so that the dyeing roller group enters the enclosed area of ​​the two arc frames to tension the coating belt.

[0006] A front handle is installed in the middle of the bottom surface of the center rod, and the driving mechanism includes a side push rod, a guide assembly and a rear handle. The rear handle is arranged on the rear side of the front handle, and side push rods are symmetrically provided on the left and right sides of the rear handle. The tail ends of the push rods on both sides are hinged to the top end of the rear handle, and the front end of the side push rod is hinged to the tail end of the connecting rod on the same side. A guide assembly is installed between the rear handle and the front handle, and the rear handle can slide to adjust the distance between it and the front handle through the guide assembly.

[0007] A hinge shaft is coaxially mounted on the top end of the rear handle, and the tail ends of the two side push rods are rotatably sleeved on the hinge shaft.

[0008] The guide assembly comprises a guide rod, which is fixedly connected to the front handle. A sliding hole is provided in the middle of the rear handle, and the guide rod is matched and inserted in the sliding hole.

[0009] The shell includes an upper shell plate, a lower shell plate and a back plate. The upper shell plate and the lower shell plate are arranged in parallel and spaced apart, and the upper shell plate and the lower shell plate are fixedly connected through the back plate. Slide grooves are provided on the opposite surfaces of the upper shell plate and the lower shell plate. The slide seat is matched and installed in the slide grooves of the upper and lower shell plates, and the top spring is arranged between the slide seat and the back plate; connecting blocks are installed on both sides of the top spring, and the connecting blocks are fixedly connected to the corresponding connecting rods.

[0010] The slide seat includes an upper slide, a lower slide and a vertical plate, and the upper slide and the lower slide are respectively slidably installed in the slide grooves of the upper shell plate and the lower shell plate, and the ends of the upper slide and the lower slide close to the back plate are fixedly connected by the vertical plate; the dyeing roller group includes a dyeing roller vertically rotatably installed between the upper slide and the lower slide, and the dyeing roller is transmission-connected to the driving assembly; the discharge roller is located between the dyeing roller and the vertical plate, and the discharge roller is transmission-connected to the dyeing roller, and bristles are provided on the outer ring surface of the dyeing roller, and the discharge roller is in contact with the dyeing roller.

[0011] The feeding mechanism includes a paint tank, the top of which is provided with an air inlet, the air inlet is equipped with a one-way air inlet valve, and the air inlet is connected to an air pump through the one-way air inlet valve; the bottom of the paint tank is provided with a discharge port, the discharge port is equipped with a one-way discharge valve, and the discharge port is connected to the internal cavity of the discharge roller through the one-way discharge valve.

[0012] The elastic hinge assembly includes a rotating shaft, which is vertically rotatably installed in the shell. The inner bottom surface of the shell is provided with an arc-shaped limit groove with the rotating shaft as the axis. The inner end of the arc frame is rotatably mounted on the rotating shaft, and a limit block is provided at the bottom of the arc frame. The limit block is matched and inserted into the arc-shaped limit groove. The limit block can slide along the arc-shaped limit groove following the rotation of the arc frame. A spring component is matched and installed in the arc-shaped limit groove, and the spring component is located between the limit block and the slide seat.

[0013] Beneficial effects of the present invention: The present invention provides a pipeline anti-corrosion coating equipment for electrical fire safety engineering. Through its unique coating module design and flexible driving mechanism, the arc frame on the wall side can easily enter the narrow space between the pipeline and the wall, and wrap the pipeline in an annular shape. It is suitable for pipelines of different sizes, and performs all-round and dead-angle coating on the wall-mounted pipelines, reducing the construction difficulty. During the anti-corrosion coating process, symmetrically arranged coating modules are used to automatically coat the pipeline along the annular surface in partitions, which not only improves the construction efficiency of the anti-corrosion coating and greatly shortens the construction time, but also improves the coating coverage rate, achieves all-round coverage, avoids the uneven phenomenon of manual coating, and ensures the anti-corrosion effect of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the driving mechanism structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the shell structure of the present invention.

[0017] Figure 4 It is a schematic diagram of the internal structure of the coating module of the present invention.

[0018] Figure 5 It is a schematic diagram of the installation position of the arc frame of the present invention.

[0019] Figure 6 It is a schematic diagram of the structure of the coating tensioning device of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the elastic hinge assembly of the present invention.

[0021] Figure 8 It is a schematic diagram of the process of coating module wrapping pipeline in the present invention.

[0022] Fig. 9 It is a structural schematic diagram of the dyeing roller group of the present invention.

[0023] The numbers in the figure are: 1 is a center rod, 11 is a connecting rod, 12 is a front handle, 2 is a coating module, 3 is a shell, 31 is an upper shell plate, 32 is a lower shell plate, 33 is a back plate, 34 is a slide groove, 35 is a window, 36 is a connecting block, 37 is a rotating shaft, 38 is an arc-shaped limit groove, 39 is a spring member, 4 is a coating tensioning device, 41 is a slide seat, 411 is an upper slide plate, 412 is a lower slide plate, 413 is a vertical plate, 42 is a coating roller, 421 is a driving jack, 43 is a discharge roller, 44 is a top spring, 45 is a rotary joint, 46 is a driving motor, 47 is a driving wheel, 48 is a main dyeing roller, 49 is a hinged plate, 5 is an arc frame, 51 is a guide column, 6 is a coating belt, 61 is a toothed belt, 611 is a tooth groove, 7 is a paint tank, 8 is a driving mechanism, 81 is a side push rod, 82 is a guide rod, and 83 is a rear handle. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Embodiment 1: In view of the problems raised in the above background technology, this embodiment provides a pipeline anti-corrosion coating device for electrical fire safety engineering, such as Figure 1-8 As shown, it includes a central rod 1, a driving mechanism 8 and a coating unit. The coating unit includes two coating modules 2 which are laterally symmetrically arranged on the front side of the central rod 1. The two coating modules 2 are alternately arranged vertically. Connecting rods 11 are symmetrically hinged at the left and right ends of the central rod 1. The front ends of the two connecting rods 11 are respectively connected to the coating modules 2 on the same side, and the rear ends of the two connecting rods 11 are connected to the driving mechanism 8. The driving mechanism 8 can drive the two coating modules 2 to rotate synchronously in opposite directions around the left and right ends of the central rod 1.

[0026] Specifically: Figure 2 As shown, a front handle 12 is vertically installed in the middle of the bottom surface of the center rod 1, and the driving mechanism 8 includes a side push rod 81, a guide assembly and a rear handle 83. The rear handle 83 is arranged in parallel and spaced apart at the rear side of the front handle 12, and the guide assembly is arranged between the rear handle 83 and the front handle 12. The rear handle 83 can slide longitudinally to adjust the distance between it and the front handle 12 through the guide assembly; side push rods 81 are symmetrically arranged on the left and right sides of the rear handle 83, and the tail ends of the push rods 81 on both sides are hinged to the top of the rear handle 83. There are many ways to hinge the side push rod 81 and the rear handle 83, for example: a hinge shaft is coaxially installed at the top of the rear handle 83, the tail ends of the two side push rods 81 are rotatably mounted on the hinge shaft at the top of the rear handle 83, the front end of the side push rod 81 is hinged to the tail end of the same-side connecting rod 11, and the inner angle between the side push rod 81 and the same-side connecting rod 11 is not less than 130° when not in use. When the front and rear handles are grasped and driven toward each other, the two side push rods 81 on the rear handle will synchronously rotate in opposite directions around the end of the center rod 1, thereby driving the two coating modules 2 to rotate synchronously in opposite directions at the left and right ends of the center rod 1.

[0027] like Figure 2 As shown, the guide assembly includes a guide rod 82, a sliding hole is provided in the middle of the rear handle 83 along the longitudinal direction, the guide rod 82 is matched and inserted in the sliding hole, and the tail end of the guide rod 82 is fixedly connected to the front handle 12. The cooperation between the sliding hole and the guide rod 82 can constrain the two connecting rods 11 to rotate synchronously in opposite directions.

[0028] like Figure 3-6 As shown, the coating module 2 includes a coating tensioning device 4, an arc frame 5, an elastic hinge assembly, a coating belt 6, a feeding mechanism and a shell 3 with an opening, the shell 3 is fixedly connected to the adjacent side connecting rod 11, and the opening of the shell 3 faces the coating module 2 on the other side, the shell 3 includes an upper shell plate 31, a lower shell plate 32 and a back plate 33, the upper shell plate 31 and the lower shell plate 32 are arranged in parallel and spaced apart, and the upper shell plate 31 and the lower shell plate 32 are fixedly connected together at one end away from the coating module 2 on the other side through the back plate 33, and there are various ways to connect the back plate 33 to the two shell plates, for example: the back plate 33 and the two shell plates are welded together or the back plate 33 and the two shell plates are an integrated structure.

[0029] like Figure 5 As shown, arc frames 5 are symmetrically arranged on the front and rear sides of the shell 3, the inner arc surfaces of the two arc frames 5 are arranged to face each other, the inner ends of the two arc frames 5 are hingedly installed in the shell 3 through elastic hinge components, and a connecting block 36 is fixedly installed between the two shell plates between the arc frame 5 and the back plate 33, and the connecting block 36 is fixedly connected to the front end of the corresponding connecting rod 11, and the outer end of the arc frame 5 extends out of the shell 3 through the opening, and the elastic hinge component will drive the outer ends of the two arc frames 5 to keep away from each other in a natural state.

[0030] Specifically: the elastic hinge assembly includes a rotating shaft 37 installed in the shell 3 along the vertical rotation, and the inner bottom surface of the shell 3 is provided with an arc-shaped limit groove 38 with the rotating shaft 37 as the axis. The inner end of the arc frame 5 is rotatably mounted on the rotating shaft 37, and a limit block is provided at the bottom of the arc frame 5. The limit block is matched and inserted into the arc-shaped limit groove 38. The limit block can slide along the arc-shaped limit groove 38 following the rotation of the arc frame 5. A spring member 39 is matched and installed in the arc-shaped limit groove 38. The spring member 39 is located between the limit block and the slide seat 41. In a natural state, the spring member 39 will push the limit block to drive the arc frame to rotate around the rotating shaft 37 away from the slide seat 41, so that the outer ends of the two arc frames 5 remain away from each other.

[0031] The coating tensioning device 4 includes a slide 41, a coating roller group, a discharge roller 43 and a top spring 44. The slide 41 is installed in the outer shell 3 between the two arc frames 5 along the transverse sliding direction. The coating roller group is matched and installed in the slide 41 and is transmission-connected with a driving component. The discharge roller 43 is rotatably installed in the slide 41 of the coating roller group away from the other side of the coating module 2, and a cavity connected to the discharge end of the feeding mechanism is provided in the discharge roller 43. The discharge roller 43 is transmission-connected to the coating roller group, and the outer annular surface of the discharge roller 43 is in contact with the coating roller group. Discharge holes connected to the internal cavity are arranged on the outer annular surface of the discharge roller 43. Furthermore, a one-way discharge valve is matched and installed in each discharge hole on the outer annular surface of the discharge roller 43, so as to effectively prevent the paint in the cavity from flowing out freely. The coating belt 6 is sleeved on the outside of the two arc-shaped frames 5. The top spring 44 will push the slide 41 in a natural state to drive the coating roller group into the enclosed area of ​​the two arc-shaped frames 5, and the coating roller group pushes and tensions the coating belt 6.

[0032] like Figure 3As shown, a slide groove 34 is provided in the middle of the bottom surface of the upper shell plate 31 and the middle of the upper end surface of the lower shell plate 32 along the transverse direction, and the slide groove 34 is located between the two arc-shaped frames 5. The slide seat 41 is matched and installed in the slide groove 34 of the upper and lower shell plates, and the top spring 44 is matched and arranged between the slide seat 41 and the back plate 33. In a natural state, the top spring 44 will push the slide seat 41 to move along the slide groove 34 into the enclosed area of ​​the two arc-shaped frames 5, and the top spring 44 pushes the slide seat 41 to move along the slide groove 34 into the enclosed area of ​​the two arc-shaped frames 5, and the top thrust of the top spring 44 is less than the top thrust of the spring member 39. The slide 41 includes an upper slide 411, a lower slide 412 and a vertical plate 413. The upper slide 411 and the lower slide 412 are respectively slidably mounted in the slide grooves 34 of the upper shell 31 and the lower shell 32, and the upper slide 411 and the lower slide 412 are fixedly connected together at one end close to the back plate 33 through the vertical plate 413; the dyeing roller group includes a dyeing roller 42 which is vertically rotatably mounted between the upper slide 411 and the lower slide 412, and the dyeing roller 42 is transmission-connected to the driving assembly; the discharge roller 43 is vertically rotatably mounted in the slide 41 between the dyeing roller 42 and the vertical plate 413, and the discharge roller 43 is transmission-connected to the dyeing roller 42. The outer annular surface of the dyeing roller 42 is matched with bristles, and the outer annular surface of the discharge roller 43 is in contact with the dyeing roller 42. After the coating belt 6 is sleeved on the outside of the two arc frames 5, the top spring 44 will push the slide 41 under the natural state to drive the coating roller 42 to enter the enclosed area of ​​the two arc frames 5, thereby pushing and tensioning the coating belt 6. The inner ring surface of the coating belt 6 is in sliding contact with the arc frame 5, that is, the friction between the coating belt 6 and the arc frame 5 in the tensioned state is smaller than the friction between the coating roller 42 and the coating belt 6. When the coating roller 42 rotates, it will drive the tensioned coating belt 6 to rotate in a circle, thereby transferring the coating slurry through the outer ring surface of the coating belt 6.

[0033] Specifically: Figure 3 As shown, a strip window 35 connected to the bottom surface chute 34 is provided on the top of the upper shell plate 31 in the horizontal direction, and a fixed shaft is fixed on the upper and lower ends of the dyeing roller 42 and the discharge roller 43 coaxially, and the fixed shafts at the upper and lower ends of the dyeing roller 42 and the discharge roller 43 are respectively rotatably mounted on the upper slide plate 411 and the lower slide plate 412, and the outer ring surface of the discharge roller 43 fits the outer ring surface of the dyeing roller 42, and the outer surface of the discharge roller 43 is connected to the dyeing roller 42 by transmission, and there are many ways of transmission connection between the two. For example: the bottom surface of the lower shell plate 32 is also provided with a strip window 35 connected to the upper end surface chute 34 of the lower shell plate 32 in the horizontal direction, and the fixed shafts at the lower ends of the dyeing roller 42 and the discharge roller 43 are extended out of the shell 3 downward through the strip window 35 on the lower shell plate 32, and are equipped with gears, and the dyeing roller 42 is meshed with the gears of the fixed shafts at the lower ends of the discharge roller 43, so that when the discharge roller 43 rotates, it will drive the dyeing roller 42 to rotate synchronously.

[0034] The driving assembly is installed on the upper slide plate 411 through the strip window 35, and is connected to the fixed shaft on the upper side of the dyeing roller 42. There are many ways to connect the fixed shaft on the upper side of the dyeing roller 42 to the driving assembly. For example, the fixed shaft on the upper side of the dyeing roller 42 is flush with the upper end surface of the slide plate 411 of the slide seat 41, and a driving socket 421 is axially provided in the middle part of the fixed shaft on the upper side of the dyeing roller 42. The driving assembly includes a driving motor 46 whose motor shaft 37 is a prismatic motor. The driving motor 46 is fixed to the upper slide plate 411 by bolts, and the motor shaft 37 of the driving motor 46 is matched and inserted into the driving socket 421, so that when the driving motor 46 is working, it will drive the dyeing roller 42 to rotate synchronously.

[0035] The upper fixed shaft of the discharge roller 43 extends out of the housing 3 through the strip window 35, and the upper fixed shaft of the discharge roller 43 is provided with a feed channel connected to the internal cavity of the discharge roller 43, and the top of the upper fixed shaft of the discharge roller 43 is matched with a rotary joint 45, and the feed channel is connected to the discharge end of the feeding mechanism through the rotary joint 45. The feeding mechanism includes a coating tank 7, the top of the coating tank 7 is provided with an air inlet, and is matched with a one-way air inlet valve, and the air inlet end of the one-way air inlet valve is connected to an air pump; the bottom of the coating tank 7 is provided with a discharge port, and is matched with a one-way discharge valve, and the discharge end of the one-way discharge valve is connected to the internal cavity of the discharge roller 43 through the rotary joint 45. When the air pump is started, it will inject air into the coating tank 7, so that the anti-corrosion coating in the coating tank 7 is squeezed out and discharged into the inner cavity of the discharge roller 43, and flows out through the discharge holes on the outer ring surface of the discharge roller 43. When the coating roller 42 rotates, the anti-corrosion coating flowing out of the outer ring surface of the discharge roller 43 will be transferred and stained on the outer ring surface of the coating roller 42. When the coating roller 42 drives the coating belt 6 to circulate, the anti-corrosion coating outside the coating roller 42 will be transferred and stained on the outer ring surface of the coating belt 6, so that the coating belt 6 is used to perform anti-corrosion coating on the pipeline.

[0036] When using, Figure 8As shown, the two coating modules 2 are driven by the driving mechanism 8 to rotate synchronously inward around the left and right ends of the center rod 1 respectively, and the coating belt 6 between the tail ends of the two arc frames 5 of the coating module 2 is used to clamp the pipeline. As the two coating modules 2 rotate inward synchronously, the outer annular surface of the pipeline will push the coating belt 6 between the tail ends of the two arc frames 5 in the two coating modules 2, so that the slide 41 is driven to slide horizontally with the inner ends of the two arc frames 5 as the fulcrum to compress the top spring 44, move and release the coating belt 6, so that the pipeline gradually enters the enclosed area of ​​the tail ends of the two arc frames 5. In this process, under the tensioning action of the top spring 44, the coating belt 6 will gradually release the outer annular surface of the wrapped pipeline. When the slide 41 moves to the limit position, as the two coating modules 2 continue to rotate inward synchronously, the two arc frames 5 in the coating module 2 will be driven to rotate inward around the hinge end to reduce the distance between the tail ends of the two arc frames 5. As the distance between the tail ends of the two arc frames 5 is reduced, the size of the outer ring surface of the pipeline wrapped by the coating belt 6 will gradually increase along the circumferential direction, so as to achieve the overall wrapping of the outer ring surface of the pipeline along the circumferential direction by the two coating belts 6 in the two coating modules 2 that are symmetrical on both sides. When the feeding mechanism and the driving assembly in the coating module 2 are working, the paint on the outer ring surface of the coating belt 6 will be evenly applied to the surface of the pipeline. As the entire equipment moves downward, the upper coating module 2 will be combined with the coating area of ​​the lower coating module 2 to achieve overall circumferential coverage, thereby improving the construction efficiency and coating quality of the anti-corrosion coating of the wall-mounted pipeline. The pipeline anti-corrosion coating equipment for electrical fire safety engineering provided by the present invention has a unique coating module 2 design and a flexible driving mechanism 8, wherein the wall-side arc frame 5 can easily enter the narrow space between the pipeline and the wall, and annularly wrap around the pipeline shape, which is suitable for pipelines of different sizes, and performs all-round and dead-angle coating on the wall-side pipeline, reducing the construction difficulty. In the anti-corrosion coating process, the symmetrically arranged coating module 2 is used to automatically coat the pipeline along the annular surface in different areas, which not only improves the construction efficiency of the anti-corrosion coating and greatly shortens the construction time, but also improves the coating coverage rate, achieves all-round coverage, avoids the unevenness of manual coating, and ensures the anti-corrosion effect of the pipeline.

[0037] Embodiment 2: Embodiment 2 differs from Embodiment 1 in that Figure 4 As shown, guide columns 51 are installed at both inner and outer ends of the arc frame 5 for vertical rotation. The coating belt 6 mounted on the two arc frames 5 and tensioned by the coating tensioning device 4 is guided and bent by the guide columns 51, thereby further reducing the resistance of driving the coating belt 6 to circulate along the arc frame 5.

[0038] Embodiment 3: Embodiment 3 differs from Embodiment 2 in that Figure 4 and Figure 5As shown, toothed belts 61 are matched and installed at both ends of the coating belt 6. There are many ways to fix the toothed belt 61 to the coating belt 6, such as gluing the coating belt 6 to the coating belt 6. The outer ring surface of the toothed belt 61 is evenly provided with tooth grooves 611 along the circumferential direction, and the upper and lower ends of the roller body of the coating roller 42 in the slide 41 that directly contacts the coating belt 6 are matched with driving wheels 47 that mesh with the toothed belt 61. Specifically: driving wheels 47 are matched and installed above the fixed shafts at both ends of the upper and lower ends of the coating roller 42, and the outer ring surface of the driving wheel 47 is provided with driving teeth that match the tooth grooves 611 of the toothed belt 61. When the coating roller 42 conflicts with the coating belt 6, the driving wheels 47 on the upper and lower sides of the driving wheel 47 will mesh with the toothed belts 61 on the upper and lower sides of the coating belt 6, thereby effectively ensuring the transmission between the coating roller 42 and the coating belt 6, and preventing the coating roller 42 from idling.

[0039] Embodiment 4: Embodiment 4 is different from Embodiment 2 in that Figure 7 As shown, the coating roller group also includes two main dyeing rollers 48 symmetrically arranged on the left and right sides of the coating roller 42. The two main dyeing rollers 48 are rotatably installed in the slide 41 on the side of the coating roller 42 away from the discharge roller 43, and are connected to the coating roller 42 in a transmission manner, and the outer annular surface of the main dyeing roller 48 is in contact with the outer annular surface of the coating roller 42, so that when the coating belt 6 is sleeved on the outside of the two arc frames 5, the top spring 44 will push the slide 41 in a natural state to drive the two main dyeing rollers 48 into the enclosed area of ​​the two arc frames 5 to push and tension the coating belt 6. The upper and lower ends of the coating belt 6 are matched with toothed belts 61, and there are many ways to fix the toothed belt 61 and the coating belt 6, such as bonding the coating belt 6 to the coating belt 6. The outer annular surface of the toothed belt 61 is uniformly provided with tooth grooves 611 along the circumferential direction, and the upper and lower ends of the roller body of the coating roller 42 in the slide 41 that directly contacts the coating belt 6 are matched with driving wheels 47 that are matched and meshed with the toothed belt 61. Specifically: a driving wheel 47 is matched and installed on the fixed shaft of any one of the two main dyeing rollers 48, and the outer ring surface of the driving wheel 47 is provided with driving teeth matching the tooth grooves 611 of the toothed belt 61. When the two main dyeing rollers 48 collide with the coating belt 6, the driving wheels 47 on the upper and lower sides of the driving wheel 47 will engage with the toothed belts 61 on the upper and lower sides of the coating belt 6. Compared with a single roller transferring paint, this embodiment uses two main dyeing rollers 48 to transfer dye, which can more effectively and evenly transfer the paint to the coating belt 6, thereby improving the efficiency of paint transfer.

[0040] Embodiment 5: The difference between Embodiment 5 and Embodiment 4 is that the two main dyeing rollers 48 are rotatably mounted in the slide 41 via the dyeing roller 42. Fig. 9 shown.

[0041] A hinged plate 49 is rotatably mounted on the fixed axis of the main dyeing roller 48 at both ends of the main dyeing roller 48, and the other end of the hinged plate 49 is rotatably mounted on the fixed axis of the dyeing roller 42 on the same side. A guide groove is provided on the inner bottom surface of the slide seat 41 below the two main dyeing rollers 48 with the dyeing roller 42 as the axis. A guide column 51 matching the guide groove is provided on the bottom surface of the hinged plate 49 on the lower side of the two main dyeing rollers 48, and is matched and inserted into the guide groove on the same side. The guide column 51 can move along the guide groove following the rotation of the hinged plate 49 around the fixed axis of the dyeing roller 42. A spring is matched and installed in the guide groove in the guide column 51 away from the other side main dyeing roller 48. In the natural state, the two springs will infer that the guide column 51 drives the hinge plate 49 to drive the two main dyeing rollers 48 to move toward each other and maintain the extreme proximity state. In the extreme proximity state, the angle between the hinge plates 49 of the two main dyeing rollers 48 is an obtuse angle and is less than 180°; when the slide 41 moves to the extreme position, the two main dyeing rollers 48 in the coating roller group are still located between the enclosed areas of the two arc frames 5, so that when the slide 41 moves to the extreme position, as the two coating modules 2 continue to rotate inward synchronously, the two main dyeing rollers 48 will first be squeezed by the spring around the coating roller 42 to flip outward away from each other to further release the coating belt.

[0042] Example 6: The difference between Example 6 and Example 5 is that a feed pipe is installed at the inner opening of the paint tank discharge port, and a counterweight ball is installed at the other end of the feed pipe. A feed port connected to the inside of the feed pipe is provided on the outer spherical surface of the counterweight ball. Under the action of the counterweight ball, the end of the feed pipe away from the paint tank discharge port can always be immersed in the paint in the paint tank.

[0043] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modification, equivalent substitution, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline anti-corrosion coating equipment for electrical fire safety engineering, characterized in that: The invention comprises a central rod (1), a driving mechanism (8) and a coating unit, wherein the coating unit comprises two coating modules (2) which are symmetrically arranged in the front side of the central rod (1) in the transverse direction, and the two coating modules (2) are arranged alternately in the vertical direction. The left and right ends of the central rod (1) are symmetrically hinged with connecting rods (11), the front ends of the two connecting rods (11) are respectively connected to the coating modules (2) on the same side, and the rear ends of the two connecting rods (11) are both connected to the driving mechanism (8), and the two coating modules (2) are respectively arranged around the central rod (1) through the driving mechanism (8). ) whose left and right ends rotate synchronously in opposite directions; the coating module (2) comprises a coating tensioning device (4), an arc frame (5), an elastic hinge assembly, a coating belt (6), a feeding mechanism and a shell (3) provided with an opening, the shell (3) being fixedly connected to an adjacent side connecting rod (11), and the opening of the shell (3) facing the coating module (2) on the other side; the shell (3) is symmetrically provided with arc frames (5) on the front and rear sides, the inner ends of the two arc frames (5) are hingedly mounted in the shell (3) by the elastic hinge assembly, and the outer ends of the arc frames (5) are hingedly mounted in the shell (3) by the elastic hinge assembly, and the outer ends of the arc frames (5) are hingedly mounted in the shell (3) by the elastic hinge assembly. The ends extend out of the housing (3) through the opening, and the elastic hinge assembly drives the outer ends of the two arc-shaped frames (5) to remain away from each other in a natural state; the coating tensioning device (4) comprises a slide seat (41), a coating roller group, a discharge roller (43) and a top spring (44); the slide seat (41) is slidably installed in the housing (3) between the two arc-shaped frames (5) along the transverse direction; the coating roller group is matched and installed in the slide seat (41) and is transmission-connected with a driving assembly; the discharge roller (43) is rotatably installed in the slide seat (41), and the discharge roller A cavity is provided in (43), and the cavity is connected to the feeding mechanism. The discharge roller (43) is connected to the dyeing roller group in a transmission manner, and the discharge roller (43) is in close contact with the dyeing roller group. The outer ring surface of the discharge roller (43) is provided with a discharge hole connected to the cavity; the coating belt (6) is sleeved on the outside of the two arc-shaped frames (5), and the top spring (44) is installed between the outer shell (3) and the slide seat (41). The top spring (44) pushes the slide seat (41) in a natural state, so that the dyeing roller group enters the enclosed area of ​​the two arc-shaped frames (5) to tension the coating belt (6).

2. The pipeline anti-corrosion coating equipment for electrical fire safety engineering according to claim 1 is characterized in that: A front handle (12) is installed at the middle of the bottom surface of the center rod (1). The driving mechanism (8) comprises a side push rod (81), a guide assembly and a rear handle (83). The rear handle (83) is arranged at the rear side of the front handle (12). The side push rods (81) are symmetrically arranged on the left and right sides of the rear handle (83). The rear ends of the push rods (81) on both sides are hinged to the top of the rear handle (83). The front ends of the side push rods (81) are hinged to the rear end of the connecting rod (11) on the same side. The guide assembly is installed between the rear handle (83) and the front handle (12). The distance between the rear handle (83) and the front handle (12) is adjusted by sliding through the guide assembly.

3. The pipeline anti-corrosion coating equipment for electrical fire safety engineering according to claim 2 is characterized in that: A hinge shaft is coaxially mounted on the top end of the rear handle (83), and the tail ends of the two side push rods (81) are rotatably sleeved on the hinge shaft.

4. The pipeline anti-corrosion coating equipment for electrical fire safety engineering according to claim 2 is characterized in that: The guide assembly comprises a guide rod (82), the guide rod (82) being fixedly connected to the front handle (12), a slide hole being provided in the middle of the rear handle (83), and the guide rod (82) being matched and inserted into the slide hole.

5. The pipeline anti-corrosion coating equipment for electrical fire safety engineering according to claim 1 is characterized in that: The housing (3) comprises an upper shell plate (31), a lower shell plate (32) and a back plate (33); the upper shell plate (31) and the lower shell plate (32) are arranged in parallel and spaced apart, and the upper shell plate (31) and the lower shell plate (32) are fixedly connected via the back plate (33); a slide groove (34) is provided on the surfaces opposite to the upper shell plate (31) and the lower shell plate (32); the slide seat (41) is matched and installed in the slide groove (34) of the upper and lower shell plates; the top spring (44) is arranged between the slide seat (41) and the back plate (33); connecting blocks (36) are installed on both sides of the top spring (44); the connecting blocks (36) are fixedly connected to corresponding connecting rods (11).

6. The pipeline anti-corrosion coating equipment for electrical fire safety engineering according to claim 5 is characterized in that: The slide seat (41) comprises an upper slide plate (411), a lower slide plate (412) and a vertical plate (413); the upper slide plate (411) and the lower slide plate (412) are respectively slidably mounted in the slide grooves (34) of the upper shell plate (31) and the lower shell plate (32); and one end of the upper slide plate (411) and the lower slide plate (412) close to the back plate (33) are fixedly connected via the vertical plate (413); the dyeing roller group comprises a dyeing roller (42) vertically rotatably mounted between the upper slide plate (411) and the lower slide plate (412); the dyeing roller (42) is transmission-connected to the driving assembly; the discharge roller (43) is located between the dyeing roller (42) and the vertical plate (413); the discharge roller (43) is transmission-connected to the dyeing roller (42); bristles are provided on the outer annular surface of the dyeing roller (42); the discharge roller (43) and the dyeing roller (42) are in close contact.

7. The pipeline anti-corrosion coating equipment for electrical fire safety engineering according to claim 1 is characterized in that: The feeding mechanism comprises a coating tank (7), wherein an air inlet is provided at the top of the coating tank (7), a one-way air inlet valve is installed at the air inlet, and an air pump is connected to the air inlet via the one-way air inlet valve; and a discharge port is provided at the bottom of the coating tank (7), a one-way discharge valve is installed at the discharge port, and the discharge port is connected to the internal cavity of the discharge roller (43) via the one-way discharge valve.

8. The pipeline anti-corrosion coating equipment for electrical fire safety engineering according to claim 1 is characterized in that: The elastic hinge assembly comprises a rotating shaft (37), the rotating shaft (37) being vertically rotatably mounted in the housing (3), an arc-shaped limit groove (38) being provided on the inner bottom surface of the housing (3) with the rotating shaft (37) as the axis, the inner end of the arc frame (5) being rotatably sleeved on the rotating shaft (37), and a limit block being provided at the bottom of the arc frame (5), the limit block being matched and inserted into the arc-shaped limit groove (38), the limit block being able to slide along the arc-shaped limit groove (38) following the rotation of the arc frame (5), a spring member (39) being matched and installed in the arc-shaped limit groove (38), the spring member (39) being located between the limit block and the slide seat (41).

Images