Variable-diameter pipeline cleaning and dust removing system and construction method thereof

Abstract

According to the variable-diameter pipeline cleaning and dust removing system and the construction method thereof, the problem that an existing pipeline cleaning device cannot adapt to cleaning construction of variable-diameter pipelines or curved pipelines is solved. The steering device comprises a main steering rod arranged along the axis, a secondary steering rod arranged on the outer side of the steering device in the radial direction, and a tail steering knuckle connected to one end of the main steering rod; and rod type telescopic arms of the cleaning device are vertically arranged at intervals and connected to the other end of the main steering rod, the outer side of each rod type telescopic arm is connected with two diameter-variable adjusting assemblies which are stacked and hinged, the two hinged diameter-variable adjusting assemblies are driven by the rod type telescopic arms to stretch out and draw back in a diameter-variable mode, and the dust removal device arranged on the main steering rod in a sleeving mode takes away generated dust. The construction method comprises the steps that the rod type telescopic arm of the cleaning device is controlled to stretch out and draw back to drive the variable-diameter adjusting assembly to expand or contract in the radial direction, the brush barrel makes contact with the inner wall of the variable-diameter pipeline, and the walking propelling device drives the cleaning device to rotate for cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering construction, and in particular to a variable-diameter pipeline cleaning and dust removal system and a construction method thereof. Background Art

[0002] Existing pipeline cleaning devices are of various forms. Some pipeline cleaning devices adopt a fixed cylindrical structure, and the circular brush head is rotated by a transmission device to achieve the cleaning effect. There are great disadvantages in using this pipeline cleaning device. It can only clean pipelines of different diameters by changing the diameter specifications of the circular brush head. When the bristles are too long or the bristle stiffness is insufficient, the cleaning effect will be greatly reduced; when the bristles are too short, it is necessary to replace a new cylindrical structure, or to set an electric telescopic device to electrically adjust the length of the brush head to adapt to the cleaning work of pipelines of different diameters. Some pipeline cleaning devices use an electric rotating device to rotate and telescopically adjust the linear push rod. This pipeline cleaning device has limitations. Compared with the fixed cylindrical structure, the contact surface between the bristles of the electric rotating device and the pipeline is much smaller, and the number of brush heads is small, which will directly lead to a slower cleaning speed and reduced work efficiency; if the cleaning speed is increased, debris will be left behind, and the cleaning effect is poor; especially when encountering curved pipelines, the above two structural forms of pipeline cleaning devices cannot adapt to the cleaning construction of pipelines of different diameters or curved pipelines. Summary of the invention

[0003] Aiming at the problem that the existing pipeline cleaning device cannot adapt to the cleaning construction of pipelines with different diameters or curved pipelines, the purpose of the present invention is to provide a variable diameter pipeline cleaning and dust removal system and a construction method thereof.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a variable-diameter pipeline cleaning and dust removal system, which includes: a cleaning device, a steering device and a dust removal device; the steering device includes a main steering rod arranged along the central axis of the pipeline, a plurality of secondary steering rods parallel to the main steering rod and arranged on the outside thereof along the pipeline radial direction, and a tail steering knuckle connected to one end of the main steering rod; the cleaning device includes a rod-type telescopic arm, a variable-diameter adjustment component and a brush cylinder, at least two rod-type telescopic arms are vertically spaced and connected to the other end of the main steering rod, two stacked and hinged variable-diameter adjustment components are connected to the outside of each rod-type telescopic arm, the two ends of the secondary steering rod are respectively bolted to the variable-diameter adjustment components located on both sides thereof, and each secondary steering rod is sleeved with a plurality of brush cylinders; the main steering rod and the secondary steering rod include a plurality of screws and a triple steering knuckle, and two adjacent screws are threadedly connected by a triple steering knuckle; the dust removal device is sleeved on the main steering rod and is located between the tail steering knuckle and the cleaning device, and the other end of the tail steering knuckle is connected to the walking propulsion device.

[0005] The variable diameter pipeline cleaning and dust removal system of the present invention comprises a cleaning device, a steering device and a dust removal device. The steering device comprises a main steering rod arranged along the central axis of the pipeline, a plurality of secondary steering rods arranged on the outside thereof along the radial direction of the pipeline, and a tail steering knuckle connected to one end of the main steering rod. A triple steering knuckle is arranged between two adjacent screws of the main steering rod and the secondary steering rod, so that the steering device can adapt to the cleaning construction of turning or curved pipelines; at least two rod-type telescopic arms of the cleaning device are arranged vertically at intervals and connected to the other end of the main steering rod, and two overlapping and hinged variable diameter adjustment components are connected to the outside of each rod-type telescopic arm. The secondary steering rod is respectively bolted to the variable diameter adjustment components located on both sides thereof, and the rod-type telescopic arm drives the two hinged variable diameter adjustment components to change diameter and telescope, so that the brush cylinder on the secondary steering rod can contact the inner wall of the variable diameter pipeline in all directions; at the same time, the dust removal device set on the main steering rod and located at the tail of the cleaning device is used to take away the generated dust. The pipeline cleaning and dust removal system can flexibly adjust the diameter or turn according to the on-site pipeline conditions, has high cleaning efficiency, and is safe and reliable to use.

[0006] Furthermore, the rod-type telescopic arm includes a central axis circular tube, a telescopic rod and an arc-shaped joint. Multiple telescopic rods are radially arranged along the central axis circular tube. One end of the telescopic rod is welded and connected to the central axis circular tube. The other end of the telescopic rod is connected to the arc-shaped joint. The central axis circular tube is sleeved and connected to the main steering rod.

[0007] Furthermore, the two variable diameter adjustment assemblies are respectively a first variable diameter adjustment assembly and a second variable diameter adjustment assembly that are overlapped and staggered. Each variable diameter adjustment assembly includes a plurality of scissor blade groups that are continuously arranged and hinged along the radial direction. Each scissor blade group is composed of two symmetrically arranged scissor blades. The scissor blades are in the shape of a triangle. Each corner of the scissor blades is provided with a bolt hole. The ends of the two scissor blades away from the main steering rod are bolted to the secondary steering rod. The end of the first variable diameter adjustment assembly close to the main steering rod is bolted to the telescopic rod corresponding to the position of the rod-type telescopic arm. The middle part of the scissor blades of the second variable diameter adjustment assembly and the first variable diameter adjustment assembly are hinged. The telescopic arm telescopic can drive the first variable diameter adjustment group and the second variable diameter adjustment group to synchronously telescope radially, so that the brush cylinder on the secondary steering rod contacts the inner wall of the pipe.

[0008] Furthermore, the secondary steering rod also includes a spring, a guide ball and a connecting head. Multiple screws are connected to form a screw group through a triple steering knuckle bolt. Two springs and two connecting heads are respectively arranged axially and connected to the two ends of the screw group. The two ends of the spring are respectively fixedly connected to the connecting head and the screw group. The guide ball consists of a base plate and a spherical body connected to the base plate. The base plate of the guide ball is riveted to the outer wall of the end of the brush tube.

[0009] Furthermore, the brush cylinder includes a cylinder body sleeved on the secondary turning rod, a plurality of vertical pole supports radially arranged on the inner wall of the cylinder body, and a brush connected to the outer surface of the cylinder, and the other end of the vertical pole support is welded and connected to the secondary turning porch.

[0010] Furthermore, it also includes a connecting device, which includes a bolt-connected fixing plate and a connecting piece, and the tail steering knuckle includes a bolt-connected convex steering circular tube and a steering connecting circular tube, the fixing plate of the connecting device is bolt-connected to the walking propulsion device, the connecting piece of the connecting device is fixedly connected to the steering connecting circular tube of the tail steering knuckle, and the convex steering circular tube is connected to the dust removal device.

[0011] Furthermore, the dust removal device includes a slip ring, a shell, a connecting plate, a dust suction pipe, a fastener and a dust collector. The slip ring is connected to one end of the main steering rod close to the cleaning device. The main steering rod passes through the center of the shell and is connected to the tail steering knuckle. Multiple connecting plates are evenly distributed radially and welded to the outer wall of the shell. An internal thread is provided inside the connecting plate. Multiple dust suction pipes correspond to the installation positions of the multiple connecting plates. A limiting groove is provided at one end of the L-shaped dust suction pipe, and a threaded groove is provided at the other end and is threadedly connected to the connecting plate. The fastener includes a connected clamp and a support frame. The clamp is welded to the outer wall of the shell through the support frame. A limiting protrusion is provided on the inner wall of the clamp, and the limiting protrusion is adapted to the limiting groove of the dust suction pipe. The clamp is fastened to the outside of the dust suction pipe, and the dust collector is connected to the shell.

[0012] Furthermore, it also includes a control system, which includes a camera device, a bracket and a remote control terminal. The bracket is welded to the connecting device, the camera device is riveted to the bracket, and the remote control terminal is signal-connected to the camera device, the cleaning device, and the walking propulsion device.

[0013] In addition, the present invention also provides a method for using a variable-diameter pipeline cleaning and dust removal system, the steps of which are as follows: S1: Assemble the pipeline cleaning and dust removal system and place it in the pipeline. After the pipeline welding work is completed and before the pipeline cleaning operation is performed, control the rod-type telescopic arm of the cleaning device to extend or retract to drive the variable diameter adjustment component to expand or contract radially, so that the brush cylinder contacts the inner wall of the variable diameter pipeline; S2: When encountering a turning or curved pipeline, the cleaning device turns along with the steering device, and the walking propulsion device pushes the cleaning device, the steering device and the dust removal device to move along the pipeline axis to perform cleaning operations, and the dust removal device sucks out the dust generated after cleaning.

[0014] The method for using the variable-diameter pipeline cleaning and dust removal system of the present invention comprises the following steps: first, the rod-type telescopic arm of the cleaning device is controlled to extend and retract to drive the variable-diameter adjustment component to expand or contract radially, so that the brush cylinder contacts the inner wall of the variable-diameter pipeline, and the walking propulsion device drives the cleaning device to rotate to clean the pipeline, and pushes the cleaning device, the steering device and the dust removal device to walk along the pipeline axis to perform cleaning operations; when encountering a turn in a straight pipeline or cleaning in a curved pipeline, the linkage effect of the triple steering knuckle of the main steering rod and the secondary steering rod and the tail steering knuckle is utilized to make the cleaning device turn with the steering device, thereby achieving the cleaning effect of the straight pipe turn and the curved pipeline; the walking propulsion device pushes the cleaning device, the steering device and the dust removal device to walk along the pipeline axis to perform cleaning operations, making subsequent cleaning work more convenient and simple, and indirectly reducing the labor in the cleaning process; the method for using the pipeline cleaning and dust removal system can flexibly adjust the diameter change or turn according to the on-site pipeline conditions, thereby improving the pipeline cleaning efficiency, and being safe and reliable to use.

[0015] Furthermore, step S1 also includes: the remote control terminal of the control system is connected with the camera equipment and the cleaning device signal, the camera equipment observes the operation of the cleaning device in real time and sends the data to the remote control terminal, and the remote control terminal sends a signal to control the rod-type telescopic arm of the cleaning device to retract and drive the variable diameter adjustment component to change the diameter, so that the brush tube contacts the inner wall of the variable diameter pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a variable diameter pipeline cleaning and dust removal system of the present invention; Figure 2 A schematic structural diagram of a cleaning device according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a scissor blade assembly according to an embodiment of the present invention; Figure 4 A schematic structural diagram of a main steering rod according to an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a secondary steering rod according to an embodiment of the present invention; Figure 6 It is a schematic structural diagram of a guide ball of a secondary steering rod according to an embodiment of the present invention; Figure 7 A top view of a tail steering knuckle according to an embodiment of the present invention; Figure 8 It is a structural schematic diagram of a connecting device according to an embodiment of the present invention; Fig. 9 A schematic structural diagram of a dust removal device according to an embodiment of the present invention; Fig.10 A schematic diagram of the structure of a dust collection duct according to an embodiment of the present invention; Fig.11 The figure is a schematic structural diagram of a triple steering knuckle according to an embodiment of the present invention.

[0017] The numbers in the figure are as follows: Pipeline 1; telescopic rod 11; central axis circular tube 12; arc joint 14; first reducer adjustment component 18; scissor blade group 15; scissor blade 151; bolt hole 152; second reducer adjustment component 16; brush cylinder 17; cylinder body 171; upright pole support 172; brush 174; main steering rod 21; secondary steering rod 24; triple steering knuckle 211; screw 212; spring 245; guide ball 246; bottom plate 2461; spherical body 2462; connector 247; dust removal device 30; slip ring 31; shell 32; dust suction pipe 34; limit groove 341; threaded groove 342; connecting plate 35; clamp 36; support frame 37; tail steering knuckle 50; convex steering circular tube 51; steering connecting circular tube 52; dustproof net 53; connecting device 60; fixing plate 61; connecting piece 62; bracket 71; camera equipment 72. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. For the convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the drawings, but this cannot be a limitation of the technical solution of the present invention.

[0019] The pipes described in this embodiment are all pipes 1 with circular cross sections. Figures 1 to 11 The variable diameter pipeline cleaning and dust removal system of the present invention is described, which includes a cleaning device, a steering device and a dust removal device 30; the steering device includes a main steering rod 21 arranged along the central axis of the pipeline 1, a plurality of secondary steering rods 24 parallel to the main steering rod 21 and arranged radially on the outside of the pipeline 1, and a tail steering knuckle 50 connected to one end of the main steering rod 21, the cleaning device includes a rod-type telescopic arm, a variable diameter adjustment component and a brush cylinder 17, at least two rod-type telescopic arms are vertically spaced and connected to the other end of the main steering rod 21, two stacked and hinged variable diameter adjustment components are connected to the outside of each rod-type telescopic arm, the two ends of the secondary steering rod 24 are respectively bolted to the variable diameter adjustment components located on both sides thereof, and each secondary steering rod 24 is sleeved with a plurality of brush cylinders 17; as shown in FIG. Figure 4 and Figure 5 As shown, the main steering rod 21 and the secondary steering rod 24 include a plurality of screw rods 212 and a triple steering knuckle 211, and two adjacent screw rods 212 are threadedly connected via a triple steering knuckle 211; Figure 1As shown, the dust removal device 30 is sleeved and connected to the main steering rod 21 and is located between the tail steering knuckle 50 and the cleaning device. The other end of the tail steering knuckle 50 is connected to the walking propulsion device (not shown in the figure). The screw 212 of this embodiment is a solid iron circular shaft.

[0020] The variable diameter pipeline cleaning and dust removal system of the present invention comprises a cleaning device, a steering device and a dust removal device 30. The steering device comprises a main steering rod 21 arranged along the central axis of the pipeline 1, a plurality of secondary steering rods 24 arranged radially on the outside of the pipeline 1, and a tail steering knuckle 50 connected to one end of the main steering rod 21. A triple steering knuckle 211 is arranged between two adjacent screws 212 of the main steering rod 21 and the secondary steering rod 24, so that the steering device can adapt to the cleaning construction of the turning or curved pipeline 1. At least two of the cleaning device The rod-type telescopic arms are arranged vertically at intervals and connected to the other end of the main steering rod 21. Two overlapping and hinged variable diameter adjustment components are connected to the outside of each rod-type telescopic arm. The secondary steering rod 24 is bolted to the variable diameter adjustment components on both sides thereof. The rod-type telescopic arms drive the two hinged variable diameter adjustment components to change diameter and extend and retract, so that the brush cylinder 17 on the secondary steering rod 24 can contact the inner wall of the variable diameter pipe in all directions; at the same time, the dust removal device 30 set on the main steering rod 21 and located at the tail of the cleaning device is used to take away the generated dust. The pipeline cleaning and dust removal system can flexibly adjust the diameter or turn according to the situation of the pipeline 1 on site, has high cleaning efficiency, is safe and reliable to use, improves the pipeline cleaning efficiency and saves cleaning time for large-diameter pipelines with a diameter of ≥600mm; for small-diameter pipelines with a diameter of <600mm, the water saving effect is more obvious. For pipelines that need to be kept dry after partial pressure testing, it is more thorough and intuitive than traditional air drying, ensuring the cleaning effect. The pipeline cleaning and dust removal system is used for pipeline cleaning and dust removal after the installation of engineering pipelines. It is also suitable for pipeline cleaning and maintenance work when the pipeline is blocked during use. It is particularly suitable for cleaning and dust removal of variable-diameter straight and curved pipelines. It effectively solves the problem of water waste caused by pipeline flushing, saves labor, improves construction efficiency, and has high social value and economic effects.

[0021] like Figure 2 As shown, the rod-type telescopic arm includes a central axis circular tube 12, a telescopic rod 11 and an arc-shaped joint 14. A plurality of telescopic rods 11 are radially arranged along the central axis circular tube 12. One end of the telescopic rod 11 is welded to the central axis circular tube 12. The other end of the telescopic rod 11 is connected to the arc-shaped joint 14. The central axis circular tube 12 is sleeved on the main steering rod 21. The arc-shaped joint 14 is made of metal material. The rod-type telescopic arm can be telescopically adjusted by electric or hydraulic means. The central axis circular tube 12 is an iron circular tube, which can provide protection for the electrical wires of the cleaning device.

[0022] like Figure 2As shown, the two variable diameter adjustment components include a first variable diameter adjustment component 18 and a second variable diameter adjustment component 16 which are overlapped and staggered, and each variable diameter adjustment component includes a plurality of scissor blade groups 15 which are continuously arranged and hinged in the radial direction; Figure 3 As shown, each scissor blade group 15 is composed of two symmetrically arranged scissor blades 151, the shape of the scissor blade 151 is an isosceles triangle, the scissor blade 151 is made of an iron plate of a certain thickness, each corner of the scissor blade 151 is provided with a bolt hole 152, and the hole diameter matches the connecting bolt, the end of the scissor blade group 15 away from the main steering rod 21 is bolted to the secondary steering rod 24, the end of the first variable diameter adjustment component 18 close to the main steering rod 21 is bolted to the telescopic rod 11 corresponding to the position of the rod-type telescopic arm, the second variable diameter adjustment component 16 and the middle part of the scissor blades 151 of the first variable diameter adjustment component 18 are hinged, and the telescopic arm telescopic can drive the first variable diameter adjustment component 18 and the second variable diameter adjustment component 16 to synchronously radially extend and retract, so that the brush 174 of the brush cylinder 17 on the secondary steering rod 24 contacts the inner wall of the pipe 1, thereby realizing the variable diameter adjustment of the cleaning device. In addition, for the cleaning construction of the variable diameter pipe 1, the number of scissor blade groups 15 in the variable diameter adjustment component can be adjusted according to the size of the pipe 1. By increasing or decreasing the number of scissor blade groups 15, cleaning and dust removal work can be performed on pipes of different diameters.

[0023] like Figure 5 and Figure 6 As shown, the secondary steering rod 24 also includes a spring 245, a guide ball 246 and a connector 247. Multiple screws 212 are bolted together into a screw group through a triple steering knuckle 211. Two springs 245 and two connectors 247 are respectively arranged axially and connected to the two ends of the screw group. The two ends of the spring 245 are respectively fixedly connected to the connector 247 and the screw group. The guide ball 246 consists of a base plate 2461 and a spherical body 2462 connected to the base plate 2461. The base plate 2461 of the guide ball 246 is riveted to the outer wall of the end of the brush tube 17. The guide ball 246 only contacts the inner wall of the pipe 1 when turning, and provides support for the steering device when it turns.

[0024] like Figure 2 and Figure 5 As shown, the brush cylinder 17 comprises a cylinder 171 sleeved on the secondary steering rod 24, a plurality of vertical pole supports 172 radially arranged on the inner wall of the cylinder 171, and a brush 174 connected to the outer surface of the cylinder 171, and the other end of the vertical pole support 172 is welded and connected to the secondary steering porch. The plurality of brush cylinders 17 are disconnected at the steering position to provide a space margin for the steering of the steering device. The vertical pole support 172 of this embodiment is made of Φ12 steel bars, the brush cylinder 17 is an iron cylinder, and the brush 174 is a steel brush.

[0025] like Figure 7As shown, the tail steering knuckle 50 includes a convex steering circular tube 51 and a steering connecting circular tube 52 connected by bolts. The bolt rod fastening length should be appropriate, not too long to affect the rotation of the central axis, and not too short to affect the rotation effect. It also includes a dustproof net 53, which is riveted to the convex steering circular tube 51 and the steering connecting circular tube 52 respectively, and there should be appropriate margins on both sides to ensure that the steering device can rotate freely. The convex steering circular tube 51 and the steering connecting circular tube 52 are both made of iron materials, and the dustproof net 53 is made of nylon.

[0026] like Figure 8 As shown, the connecting device 60 includes a fixing plate 61 and a connecting piece 62 connected by bolts. The fixing plate 61 is bolted to the walking propulsion device. The connecting piece 62 is fixedly connected to the steering connecting circular tube 52 of the tail steering knuckle 50. The convex steering circular tube 51 is connected to the dust removal device 30. The cleaning device and the steering device are connected to the walking propulsion device through the connecting device 60. The cleaning pipeline 1 is automatically propelled by the walking propulsion device, thereby improving the automation of pipeline 1 cleaning. The fixing plate 61 and the connecting piece 62 are both made of steel structures. The specific structure of the walking propulsion device is the existing technical content and will not be repeated here.

[0027] like Fig. 9 As shown, the dust removal device 30 includes a slip ring 31, a shell 32, a connecting plate 35, a dust suction pipe 34, a fastener and a dust collector. The slip ring 31 is sleeved and connected to one end of the main steering rod 21 close to the cleaning device. The main steering rod 21 passes through the center of the shell 32 and is connected to the tail steering knuckle 50. Four connecting plates 35 are evenly distributed in the radial direction and welded to the outer wall of the shell 32. The connecting plates 35 are provided with internal threads. The four dust suction pipes 34 correspond to the installation positions of the four connecting plates 35. Fig.10 As shown, a limit groove 341 is provided at one end of the L-shaped dust suction pipe 34, and a thread groove 342 is provided at the other end thereof and is threadedly connected to the connecting plate 35. The fastener includes a connected clamp 36 and a support frame 37. The clamp 36 is welded to the outer wall of the shell 32 through the support frame 37. A limit protrusion is provided on the inner wall of the clamp 36, and the limit protrusion is adapted to the limit groove 341 of the dust suction pipe 34. The clamp 36 is fastened to the outer side of the dust suction pipe 34 to provide stable support for the dust suction pipe 34. The dust collector is connected to the shell 32 to collect the dust swept out. The slip ring 31 of this embodiment is a steel ball structure. When the cleaning device rotates around the axis to clean the pipe, it ensures that the dust removal device 30, the connecting device 60 and the walking and propulsion device will not rotate with it. The support frame 37 of this embodiment is welded by Φ12 steel bars.

[0028] The variable diameter pipeline cleaning and dust removal system of the present invention also includes a control system, which includes a camera 72, a bracket 71 and a remote control terminal. The bracket 71 is welded to the connecting device 60, the camera 72 is riveted to the bracket 71, and the remote control terminal is connected to the camera 72, the cleaning device, and the walking propulsion device by signal. The construction personnel can observe the cleaning effect more intuitively through the camera 72, and remotely control the extension and stop of the rod-type telescopic arm. When the pipeline 1 changes its diameter, the visual diameter change of the cleaning device is realized, so that the brush cylinder 17 is indiscriminately in contact with the inner wall of the pipeline 1, avoiding the limitation of the working space, reducing the labor intensity of the construction personnel, and ensuring the construction safety.

[0029] Combination Figures 1 to 11 The method of using the variable diameter pipeline cleaning and dust removal system of the present invention is described as follows: S1: Assemble the pipeline cleaning and dust removal system and place it in the pipeline 1. After the welding work of the pipeline 1 is completed and before the cleaning operation of the pipeline 1 is performed, control the rod-type telescopic arm of the cleaning device to extend and retract to drive the variable diameter adjustment component to expand or contract radially, so that the brush cylinder 17 contacts the inner wall of the variable diameter pipeline 1, and the walking and propulsion device drives the cleaning device to rotate to clean the pipeline 1, and pushes the cleaning device, the steering device and the dust removal device 30 to move along the axis of the pipeline 1 to perform the cleaning operation; S2: When encountering a turn or a curved pipeline 1, the cleaning device turns along with the steering device, and the dust removal device 30 sucks out the dust generated after cleaning.

[0030] The method for using the variable diameter pipeline cleaning and dust removal system of the present invention is as follows: first, the rod-type telescopic arm of the cleaning device is controlled to extend and retract to drive the variable diameter adjustment component to expand or contract radially, so that the brush cylinder 17 contacts the inner wall of the variable diameter pipeline 1, and the walking and propulsion device drives the cleaning device to rotate to clean the pipeline 1, and pushes the cleaning device, the steering device and the dust removal device 30 to walk along the axis of the pipeline 1 to perform cleaning operations; when encountering a turn in the straight pipeline 1 or cleaning in the curved pipeline 1, the linkage effect of the triple steering knuckle 211 of the main steering rod 21 and the secondary steering rod 24 and the tail steering knuckle 50 is utilized to make the cleaning device turn with the steering device, thereby achieving the cleaning effect of the straight pipe turn and the curved pipeline; the walking and propulsion device pushes the cleaning device, the steering device and the dust removal device 30 to walk along the axis of the pipeline 1 to perform cleaning operations, making the subsequent cleaning work more convenient and simple, and indirectly reducing the labor in the cleaning process; the method for using the pipeline 1 cleaning and dust removal system can flexibly adjust the diameter or turn according to the on-site pipeline 1 situation, improve the cleaning efficiency of the pipeline 1, and is safe and reliable to use.

[0031] The step S1 also includes: the remote control terminal of the control system is connected with the camera device 72 and the cleaning device by signal. When the pipe 1 needs to be changed in diameter, the operation of the cleaning device is observed in real time and clearly through the camera device 72 and the data is sent to the remote control terminal. The remote control terminal sends a signal to control the rod-type telescopic arm of the cleaning device to drive the diameter-changing adjustment component to change the diameter, so that the brush cylinder 17 is indiscriminately in contact with the inner wall of the variable-diameter pipe 1, realizing visual operation; after the pipe 1 is cleaned, the cleaning condition of the pipe 1 can be assisted in the whole process at the remote control terminal. If the pollution is serious, it can be cleaned again. In this embodiment, the remote control terminal can be a mobile phone, a tablet computer, a PC, etc.

[0032] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of the claims.

Claims

1. A variable diameter pipeline cleaning and dust removal system, characterized in that: It comprises: a cleaning device, a steering device and a dust removing device; the steering device comprises a main steering rod arranged along the central axis of the pipeline, a plurality of secondary steering rods parallel to the main steering rod and arranged on the outside thereof along the radial direction of the pipeline, and a tail steering knuckle connected to one end of the main steering rod; the cleaning device comprises a rod-type telescopic arm, a variable diameter adjustment component and a brush cylinder, at least two rod-type telescopic arms are arranged vertically at intervals and connected to the other end of the main steering rod, two stacked and hinged variable diameter adjustment components are connected to the outside of each rod-type telescopic arm, the two ends of the secondary steering rod are respectively bolted to the variable diameter adjustment components located on both sides thereof, and a plurality of brush cylinders are sleeved on each secondary steering rod; the main steering rod and the secondary steering rod comprise a plurality of screws and a triple steering knuckle, and two adjacent screws are threadedly connected by a triple steering knuckle; the dust removing device is sleeved on the main steering rod and is located between the tail steering knuckle and the cleaning device, and the other end of the tail steering knuckle is connected to the walking propulsion device.

2. The variable diameter pipeline cleaning and dust removal system according to claim 1 is characterized in that: The rod-type telescopic arm includes a central axis circular tube, a telescopic rod and an arc joint. Multiple telescopic rods are arranged radially along the central axis circular tube. One end of the telescopic rod is welded and connected to the central axis circular tube. The other end of the telescopic rod is connected to the arc joint. The central axis circular tube is sleeved and connected to the main steering rod.

3. The variable diameter pipeline cleaning and dust removal system according to claim 2 is characterized in that: The two variable diameter adjustment assemblies are respectively a first variable diameter adjustment assembly and a second variable diameter adjustment assembly that are overlapped and staggered. Each variable diameter adjustment assembly includes a plurality of scissor blade groups that are continuously arranged and hinged along the radial direction. Each scissor blade group is composed of two symmetrically arranged scissor blades. The scissor blades are in the shape of a triangle. Each corner of the scissor blades is provided with a bolt hole. The ends of the two scissor blades away from the main steering rod are bolted to the secondary steering rod. The end of the first variable diameter adjustment assembly close to the main steering rod is bolted to the telescopic rod corresponding to the position of the rod-type telescopic arm. The second variable diameter adjustment assembly is hinged to the middle part of the scissor blades of the first variable diameter adjustment assembly. The telescopic arm can drive the first variable diameter adjustment group and the second variable diameter adjustment group to synchronously radially extend and retract, so that the brush cylinder on the secondary steering rod contacts the inner wall of the pipe.

4. The variable diameter pipeline cleaning and dust removal system according to claim 1 is characterized in that: The secondary steering rod also includes a spring, a guide ball and a connecting head. Multiple screws are connected to form a screw group through a triple steering knuckle bolt. Two springs and two connecting heads are respectively arranged axially and connected to the two ends of the screw group. The two ends of the spring are respectively fixedly connected to the connecting head and the screw group. The guide ball consists of a base plate and a spherical body connected to the base plate. The base plate of the guide ball is riveted to the outer wall of the end of the brush tube.

5. The variable diameter pipeline cleaning and dust removal system according to claim 1 is characterized in that: The brush cylinder comprises a cylinder sleeved on the secondary turning rod, a plurality of vertical pole supports radially arranged on the inner wall of the cylinder, and a brush connected to the outer surface of the cylinder, and the other end of the vertical pole support is welded and connected to the secondary turning porch.

6. The variable diameter pipeline cleaning and dust removal system according to claim 1 is characterized in that: It also includes a connecting device, which includes a bolt-connected fixing plate and a connecting piece. The tail steering knuckle includes a bolt-connected convex steering circular tube and a steering connecting circular tube. The fixing plate of the connecting device is bolt-connected to the walking propulsion device. The connecting piece of the connecting device is fixedly connected to the steering connecting circular tube of the tail steering knuckle. The convex steering circular tube is connected to the dust removal device.

7. The variable diameter pipeline cleaning and dust removal system according to claim 1 is characterized in that: The dust removal device includes a slip ring, a shell, a connecting plate, a dust suction pipe, a fastener and a dust collector. The slip ring is connected to one end of the main steering rod close to the cleaning device. The main steering rod passes through the center of the shell and is connected to the tail steering knuckle. Multiple connecting plates are evenly distributed radially and welded to the outer wall of the shell. An internal thread is provided inside the connecting plate. Multiple dust suction pipes correspond to the installation positions of the multiple connecting plates. A limiting groove is provided at one end of the L-shaped dust suction pipe, and a threaded groove is provided at the other end thereof and is threadedly connected to the connecting plate. The fastener includes a connected clamp and a support frame. The clamp is welded to the outer wall of the shell through the support frame. A limiting protrusion is provided on the inner wall of the clamp, and the limiting protrusion is adapted to the limiting groove of the dust suction pipe. The clamp is fastened to the outside of the dust suction pipe, and the dust collector is connected to the shell.

8. The variable diameter pipeline cleaning and dust removal system according to claim 1 is characterized in that: It also includes a control system, which includes a camera device, a bracket and a remote control terminal. The bracket is welded to the connecting device, the camera device is riveted to the bracket, and the remote control terminal is connected to the camera device, the cleaning device, and the walking propulsion device by signal.

9. The method for using the variable diameter pipeline cleaning and dust removal system according to any one of claims 1 to 8, characterized in that: Here are the steps: S1: Assemble the pipeline cleaning and dust removal system and place it in the pipeline. After the pipeline welding work is completed and before the pipeline cleaning operation is performed, control the rod-type telescopic arm of the cleaning device to extend or retract to drive the variable diameter adjustment component to expand or contract radially, so that the brush cylinder contacts the inner wall of the variable diameter pipeline; S2: When encountering a turning or curved pipeline, the cleaning device turns along with the steering device, and the walking propulsion device pushes the cleaning device, the steering device and the dust removal device to move along the pipeline axis to perform cleaning operations, and the dust removal device sucks out the dust generated after cleaning.

10. The method for using the variable diameter pipeline cleaning and dust removal system according to claim 9, characterized in that: The step S1 also includes: the remote control terminal of the control system is connected with the camera equipment and the cleaning device by signal, the camera equipment observes the operation of the cleaning device in real time and sends the data to the remote control terminal, and the remote control terminal sends a signal to control the rod-type telescopic arm of the cleaning device to retract and drive the variable diameter adjustment component to change the diameter, so that the brush cylinder contacts the inner wall of the variable diameter pipe.

Images