Pipeline machining device for water supply and drainage construction

Abstract

The invention relates to the technical field of cutting equipment, in particular to a pipeline machining device for water supply and drainage construction, which comprises two driving parts which are oppositely distributed and a machining part which is positioned between the two driving parts and is used for cutting and machining a pipe body, and the driving parts are used for driving the pipe body to rotate; the adjusting shaft rotates and is matched with the first extension arm and the arch-shaped frame to guide the cutting head, so that the machining direction of the cutting head always faces a constant point position, and the cutting head is matched with constant limitation of the distance between the cutting head and the pipe body and a rotating motion mode of the pipe body relative to the cutting head; therefore, a complete inclined plane can be machined on the pipe body, and the purpose of conducting inclined cutting machining on the pipe body in a non-contact mode such as laser or a water jet cutter is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting equipment, in particular to a pipe processing device for water supply and drainage construction. Background Art

[0002] In the construction of water supply and drainage systems in the fields of architecture, municipal administration, and industry, pipeline network systems are critical infrastructure. These systems usually require complex route designs based on the building structure, spatial layout, and functional requirements. They are not always simple straight-line connections. In order to change the direction of the pipeline, bypass obstacles, or intersect and connect at a specific angle, it is often necessary to connect two metal pipes (such as steel pipes, stainless steel pipes, copper pipes, etc.) at a vertical or other angle.

[0003] This type of butt joint requires that the end faces of the two metal pipes to be connected must have precisely matched bevels. The bevels must form a specific angle with the axis of the pipes to ensure that when the beveled surfaces of the two pipes meet, their central axes can naturally form the angle required by the design, such as Figure 2 This process of cutting the pipe at an angle relative to its axis is called "pipe beveling." The accuracy and consistency of the beveled surface directly determine the efficiency, sealing reliability, and overall structural strength of subsequent pipe welding or mechanical connections.

[0004] Traditional pipe beveling processing is generally performed by workers using equipment such as angle grinders and cutting machines to perform contact processing on the pipes. This processing method has low precision and is time-consuming and labor-intensive. When using equipment such as lasers and water jets for non-contact processing, the laser direction and the water flow direction are generally perpendicular to the pipe axis. That is, the pipe cut produced by the non-contact processing is not a bevel, which cannot meet the subsequent pipe docking requirements. In order to introduce this non-contact processing method into pipe beveling processing, the present invention proposes a pipe processing device for water supply and drainage construction. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a pipe processing device for water supply and drainage construction, the specific technical solution adopted by the present invention is: The present invention provides a pipe processing device for water supply and drainage construction, comprising two driving parts arranged opposite to each other and a processing part located between the two driving parts and used for cutting the pipe body, wherein the driving parts are used to drive the pipe body to rotate; The processing portion includes two coaxial adjustment shafts that are relatively distributed on both sides of the axis of the tube body, and a cutting head located between the two adjustment shafts and deviated from the line connecting the two adjustment shafts. The cutting head is used to cut the tube body. Each of the adjustment shafts is provided with an extension arm extending in the radial direction of the adjustment shaft. A bow frame is provided between the two extension arms. The end of the bow frame is slidably inserted into the extension arm along the length direction of the extension arm, and the cutting head is fixed to the middle of the bow frame. Wherein, at least one set of guide structures is provided on the bow frame, and the guide structures are used to make the distance between the cutting head and the axis of the tube body constant.

[0006] Furthermore, the guide structure includes a guide rail, a slider and a connecting column, the connecting column is rotatably installed on the bow frame, and the axis of the connecting column coincides with the cutting head, the axis of the connecting column is parallel to the axis of the adjusting shaft, the slider is connected to the connecting column, and the slider slides on the guide rail, and the sliding direction of the slider is parallel to the axis of the tube body.

[0007] Furthermore, the vertical distance between the guide rail and the axis of the adjustment shaft can be adjusted.

[0008] Furthermore, the distance between the two adjustment shafts can be adjusted.

[0009] Furthermore, the bow frame includes two right-angle arms and a linear arm located between the two right-angle arms, one end of the right-angle arm is slidably inserted into the corresponding extension arm, the end of the linear arm is slidably inserted into the other end of the corresponding right-angle arm, and the cutting head is fixed to the middle of the linear arm; Wherein, a synchronization structure is provided between the two right-angle arms, and the synchronization structure is used to make the distance between the cutting head and each of the adjustment shafts equal.

[0010] Furthermore, the synchronization structure includes a rotating rod arranged in the middle of the linear arm, and the middle of the rotating rod rotates on the linear arm. Both ends of the rotating rod are relatively inclined with inclined rods, and the inclined rods are rotationally connected to the corresponding right-angle arms.

[0011] Furthermore, each guide rail is provided with a guide body for guiding the guide rail in an inclined manner.

[0012] Furthermore, the processing portion further comprises an outer frame, the guide body is fixed on the outer frame, and a prism shaft is slidably inserted into each of the adjustment shafts, and the prism shaft is rotatably mounted on the outer frame; A support plate is provided on each of the adjusting shafts, and the adjusting shaft rotates on the corresponding support plate. A threaded rod is inserted into each of the support plates, and the threaded rod is threadedly connected to the support plate. The two threaded rods are butt-jointed, and the threads on the two threaded rods rotate in opposite directions. The threaded rods are used to push the support plate and the adjusting shaft to move.

[0013] Furthermore, the driving part includes a rotating drum capable of self-rotation, the tube body coaxially passes through the rotating drum, flanges are provided at both ends of the rotating drum, and a plurality of rotating shafts are provided in an annular shape on each flange, the rotating shafts rotate on the flanges, a second extension arm extends from the rotating shaft, a pressure plate is provided on the second extension arm, and the plurality of rotating shafts rotate and push the plurality of pressure plates toward or away from the tube body; Each flange is provided with a plurality of cylinders corresponding to the plurality of rotating shafts, the ends of the rotating shafts are coaxially inserted into the corresponding cylinders, two partitions are provided between the inner wall of the cylinder and the outer wall of the rotating shaft, the two partitions divide the internal space of the cylinder into two chambers, and the two partitions are respectively fixed to the cylinder and the rotating shaft; The two cylinder bodies are connected via an oil pipe 1, and the two oil pipes 1 on the cylinder body are respectively connected to the two chambers in the cylinder body.

[0014] The beneficial effects of the present invention are: By rotating the adjustment shaft and coordinating the guiding effect of the extension arm and the bow frame on the cutting head, the processing direction of the cutting head is always directed towards a constant point position. Combined with the constant restriction of the distance between the cutting head and the tube body and the rotational movement of the tube body relative to the cutting head, a complete bevel can be processed on the tube body, thereby achieving the purpose of beveling the tube body using non-contact methods such as laser or water jet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram after the tube body is cut; Figure 3 2 is a schematic structural diagram of a processing unit according to an embodiment of the present invention; Figure 4 is a schematic diagram of the internal structure of the outer frame in an embodiment of the present invention; Figure 5 is a schematic structural diagram of a driving unit in an embodiment of the present invention; Figure 6 is a schematic structural diagram of the side portion of the driving unit in an embodiment of the present invention; Figure 7 1 is a schematic diagram of a cross-sectional structure of a drum along the axis of the drum according to an embodiment of the present invention; Figure 8 1 is a schematic diagram of a cross-sectional structure of a drum in an embodiment of the present invention, taken along a direction perpendicular to the axis of the drum; Figure 9 yes Figure 8 Schematic diagram of the locally enlarged structure at point A in the middle.

[0017] Reference numerals: 1. Tube body; 2. Drive unit; 3. Processing unit; 4. Adjusting shaft; 5. Cutting head; 6. Extension arm 1; 7. Bow frame; 8. Guide rail; 9. Slider; 10. Connecting column; 11. Right-angle arm; 12. Linear arm; 13. Turning rod; 14. Diagonal rod; 15. Guide body; 16. Outer frame; 17. Prismatic axis; 18. Support plate; 19. Threaded rod; 20. Rotating drum; 21. Rotating axis; 22. Extension arm 2; 23. Pressing plate; 24. Elastomer; 25. Cylinder; 26. Partition; 27. Oil pipe 1; 28. Limit stop edge; 29. ​​Flow limiting slit; 30. Outer ring; 31. Annular oil chamber; 32. Circular sealing area; 33. Oil pipe 2; 34. Base; 35. Drive motor; 36. Transmission wheel; 37. Transmission ring; 38. Controller. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0021] like Figures 1 to 9 As shown, a pipe processing device for water supply and drainage construction of the present invention comprises two driving parts 2 arranged relatively to each other and a processing part 3 located between the two driving parts 2 and used for cutting and processing a pipe body 1. The driving part 2 is used to drive the pipe body 1 to rotate. The processing portion 3 includes two coaxial adjustment shafts 4 that are relatively distributed on both sides of the axis of the tube body 1 and a cutting head 5 located between the two adjustment shafts 4 and offset from the line connecting the two adjustment shafts 4. The cutting head 5 is used to cut the tube body 1. Each adjustment shaft 4 is provided with an extension arm 6 extending in the radial direction of the adjustment shaft 4. A bow frame 7 is provided between the two extension arms 6. The end of the bow frame 7 slides along the length direction of the extension arm 6 and is inserted into the extension arm 6. The cutting head 5 is fixed to the middle of the bow frame 7. Among them, at least one set of guide structures is provided on the bow frame 7, and the guide structure is used to keep the distance between the cutting head 5 and the axis of the tube body 1 constant; In the present invention, the two driving parts 2 are respectively located on both sides of the tube body 1 and are used to fix the left and right sides of the tube body 1. When the tube body 1 is cut or after cutting, the tube body 1 always remains stable and will not fall off at will; the tube body 1 passes through the two driving parts 2 and the processing part 3, and the cutting position of the tube body 1 is located in the processing part 3; the processing part 3 performs a bevel processing on the tube body 1; the two adjustment shafts 4 in the processing part 3 are on both sides of the axis of the tube body 1, and can be distributed up and down, left and right, or tilted. The two adjustment shafts 4 are coaxial and perpendicular to the axis of the tube body 1, so that Figure 4 For example, the two adjusting shafts 4 are distributed up and down. In the vertical direction, the cutting head 5 is located at the midpoint of the vertical line connecting the two adjusting shafts 4. In the horizontal direction, the cutting head 5 deviates from the adjusting shaft 4. The extension arm 1 6 and the bow frame 7 on the adjusting shaft 4 are mainly used to limit the processing direction of the cutting head 5. When the adjusting shaft 4 rotates, it can drive the cutting head 5 to move through the extension arm 1 6 and the bow frame 7. At this time, the cutting head 5 is always facing the center point of the vertical line connecting the two adjusting shafts 4. The guide structure limits the distance between the cutting head 5 and the tube body 1, so that the cutting head 5 can only move along the axis of the tube body 1 when it moves, and the cutting head 5 is always facing a specific point on the axis of the tube body 1, which is the intersection of the line connecting the two adjusting shafts 4 and the axis of the tube body 1. When in use, the tube body 1 is fixed on the two driving parts 2, and the two driving parts 2 drive the tube body 1 to rotate, the adjusting shaft 4 drives the extension arm 6 to swing back and forth, and the extension arm 6 pushes the cutting head 5 to reciprocate along the axis of the tube body 1 through the bow frame 7, and its movement range is on both sides of the intersection between the axis of the adjusting shaft 4 and the axis of the tube body 1. The extension arm 6 and the bow frame 7 limit the processing direction of the cutting head 5, and the guide structure limits the distance between the cutting head 5 and the outer wall of the tube body 1. The cutting head 5 sprays water or emits a laser and cuts the tube body 1. When the cutting head 5 moves to the left from the middle position of its movement range and then resets, as the tube body 1 rotates, the cutting head 5 can be cut. Figure 2 The left area of ​​the oblique section of the tube body 1 is cut out. When the cutting head 5 moves to the right from the middle position of the starting movement interval and then resets, as the tube body 1 rotates, the Figure 2 The right side of the beveled section of the tube body 1 is cut. When the tube body 1 rotates one circle, the cutting head 5 completes a reciprocating motion and cuts the tube body 1 into the following shape: Figure 2 The beveled surface shown, i.e., by constantly limiting the cutting direction of the cutting head 5, can be machined into a complete beveled surface on the tube body 1, thereby achieving the purpose of beveling the tube body 1 using a non-contact method such as a water jet or laser. Since the distance between the cutting head 5 and the tube body 1 is constant, when the cutting head 5 moves, the bow frame 7 and the extension arm 1 6 will slide relative to each other. By rotating the adjusting shaft 4 and cooperating with the extension arm 6 and the bow frame 7 to guide the cutting head 5, the processing direction of the cutting head 5 is always directed to a constant point position. In addition, by cooperating with the constant restriction of the distance between the cutting head 5 and the tube body 1 and the rotational movement of the tube body 1 relative to the cutting head 5, a complete bevel can be machined on the tube body 1, thereby achieving the purpose of beveling the tube body 1 using a non-contact method such as laser or water jet; It should be pointed out that when the adjusting shaft 4 no longer rotates, the cutting head 5 can be located at the midpoint or deviated position of its stroke. At this time, the tube body 1 rotates, so that the cutting head 5 can perform tangential processing on the tube body 1, and the processed port can be a concave cone, a plane or a convex cone.

[0022] Optimized on the above implementation, such as Figure 4 As shown, the guide structure includes a guide rail 8, a slider 9 and a connecting column 10. The connecting column 10 is rotatably mounted on the bow frame 7, and the axis of the connecting column 10 coincides with the cutting head 5. The axis of the connecting column 10 is parallel to the axis of the adjusting shaft 4. The slider 9 is connected to the connecting column 10, and the slider 9 slides on the guide rail 8. The sliding direction of the slider 9 is parallel to the axis of the tube body 1. The guide rail 8 is parallel to the axis of the tube body 1, so that when the slider 9 slides on the guide rail 8, the distance between the slider 9 and the tube body 1 is constant. The slider 9 restricts the bow frame 7 and the cutting head 5 through the connecting column 10, so that the distance between the cutting head 5 and the tube body 1 is constant; since the adjusting shaft 4 can push the cutting head 5 to move with the help of the extension arm 6 and the bow frame 7, relative rotation will occur between the cutting head 5 and the slider 9, and the connecting column 10 can be used here to realize the connection work in the relative rotation state.

[0023] In order to adjust the focal point of the laser emitted by the shaft 4 or the position of the water flow landing point to facilitate effective and precise cutting of the tube body 1, it is necessary to be able to adjust the distance between the cutting head 5 and the tube body 1. Specifically, the vertical distance between the guide rail 8 and the axis of the adjusting shaft 4 can be adjusted; when the guide rail 8 moves in a direction perpendicular to the axis of the adjusting shaft 4, the guide rail 8 and the tube body 1 remain parallel, and the distance between the guide rail 8 and the tube body 1 changes, thereby allowing the guide rail 8 to adjust the position of the cutting head 5 through the slider 9, the connecting column 10 and the bow frame 7. At this time, the bow frame 7 slides relative to the extension arm 6.

[0024] When cutting pipes 1 of different diameters, the distance between the two adjusting shafts 4 needs to always allow the pipe 1 to pass through, that is, the distance between the two adjusting shafts 4 can be adjusted; the specific adjustment method of the adjusting shaft 4 can be achieved through structures such as a cylinder and a motor, and in order to make the center point of the beveled surface on the pipe body 1 coincide with the axis of the pipe body 1, when the adjusting shaft 4 rotates, the cutting head 5 needs to always remain at the center point position between the two adjusting shafts 4.

[0025] Furthermore, the bow frame 7 includes two right-angle arms 11 and a linear arm 12 located between the two right-angle arms 11. One end of the right-angle arm 11 is slidably inserted into the corresponding extension arm 6, and the end of the linear arm 12 is slidably inserted into the other end of the corresponding right-angle arm 11. The cutting head 5 is fixed to the middle of the linear arm 12. Among them, a synchronization structure is provided between the two right-angle arms 11, and the synchronization structure is used to make the distance between the cutting head 5 and each adjustment shaft 4 equal; When the distance between the two adjustment shafts 4 changes, the adjustment shaft 4 can drive the right-angle arm 11 and the linear arm 12 to slide relative to each other through the extension arm 16, thereby keeping the position of the cutting head 5 relative to the center point between the two adjustment shafts 4 unchanged; the synchronization structure between the two right-angle arms 11 can ensure that the two adjustment shafts 4 can move synchronously relative to each other, and the structure can also fix the center point position of the linear arm 12, thereby limiting the position of the cutting head 5.

[0026] Furthermore, the synchronization structure includes a rotating rod 13 provided in the middle of the linear arm 12, and the middle of the rotating rod 13 rotates on the linear arm 12, and both ends of the rotating rod 13 are relatively inclined and provided with an oblique rod 14, and the oblique rod 14 is rotatably connected to the corresponding right-angle arm 11; Using the above structure, when the right-angle arm 11 slides relative to the straight arm 12, the right-angle arm 11 will pull the rotating rod 13 to rotate in the middle of the straight arm 12 through the upper inclined rod 14, and the rotating rod 13 will push the other right-angle arm 11 to move through another inclined rod 14, thereby keeping the two right-angle arms 11 in a synchronous relative motion state, which is convenient for achieving the centering positioning effect of the cutting head 5.

[0027] When the distance between the two adjustment shafts 4 is adjusted, the distance between the cutting head 5 and the pipe body 1 needs to be adjusted synchronously. Otherwise, the pipe body 1 with a larger diameter will collide with the cutting head 5, and the cutting point of the cutting head 5 cannot fall accurately on the pipe body 1. Therefore, the following method can be used: Figure 4 In the manner shown, each guide rail 8 is provided with a guide body 15 for tilting the guide rail 8; since the guide body 15 is tilted, when the adjusting shaft 4 moves, it will synchronously push the guide rail 8 to move in the vertical direction, and the guide rail 8 will tilt and move along the direction of the guide body 15. In the horizontal direction, the guide rail 8 also produces a displacement, which will drive the bow frame 7 and the cutting head 5 to move through the slider 9 and the connecting column 10, thereby achieving a synchronous adjustment effect of the adjusting shaft 4 and the cutting head 5; the guide body 15 can be a telescopic rod; in some embodiments, if you want to adjust the shaft 4 or the cutting head 5 separately, you can set the connecting column 10 to a structure with a telescopic function, and the length of the connecting column 10 can be locked by bolts or other structures.

[0028] Furthermore, the processing portion 3 further includes an outer frame 16, the guide body 15 is fixed on the outer frame 16, and each adjustment shaft 4 is slidably inserted with a prism shaft 17, which is rotatably mounted on the outer frame 16; A support plate 18 is provided on each adjusting shaft 4, and the adjusting shaft 4 rotates on the corresponding support plate 18. A threaded rod 19 is inserted into each support plate 18, and the threaded rod 19 is threadedly connected to the support plate 18. The two threaded rods 19 are butted together, and the threads on the two threaded rods 19 are rotated in opposite directions. The threaded rod 19 is used to push the support plate 18 and the adjusting shaft 4 to move; The outer frame 16 can provide support for its internal structure. Since the prism shaft 17 slides through the adjustment shaft 4, when the prism shaft 17 rotates, it will drive the adjustment shaft 4 to rotate synchronously, and when the adjustment shaft 4 moves, it will slide on the prism shaft 17; when the threaded rod 19 rotates, it will drive the support plate 18 to move. At this time, the adjustment shaft 4 and the prism shaft 17 guide the support plate 18, thereby providing power for the movement of the adjustment shaft 4; since the two threaded rods 19 are butt-jointed and the threads thereon rotate in opposite directions, when the two threaded rods 19 rotate synchronously, the two adjustment shafts 4 move synchronously relative to each other; the rotational power of the prism shaft 17 and the threaded rod 19 can both be provided by the motor; It should be noted that a controller 38 is provided on the side wall of the outer frame 16 , and the rotation of the driving part 2 , the prism shaft 17 and the threaded rod 19 is regulated by the controller 38 , so that the rotation of the tube body 1 and the movement of the cutting head 5 can cooperate with each other.

[0029] Furthermore, the driving part 2 includes a rotating drum 20 capable of self-rotation. The tube body 1 coaxially passes through the rotating drum 20. Flanges are provided at both ends of the rotating drum 20. Each flange is provided with a plurality of rotating shafts 21 in an annular shape. The rotating shafts 21 rotate on the flanges. Extending from the rotating shafts 21 are second extension arms 22. The second extension arms 22 are provided with pressure plates 23. The plurality of rotating shafts 21 rotate and push the plurality of pressure plates 23 toward or away from the tube body 1. Each flange is provided with a plurality of cylinder bodies 25 corresponding to the plurality of rotating shafts 21. The ends of the rotating shafts 21 are coaxially inserted into the corresponding cylinder bodies 25. Two partitions 26 are provided between the inner wall of the cylinder body 25 and the outer wall of the rotating shaft 21. The two partitions 26 divide the internal space of the cylinder body 25 into two chambers. The two partitions 26 are fixed to the cylinder body 25 and the rotating shaft 21 respectively. The two cylinder bodies 25 are connected by an oil pipe 27, and the two oil pipes 27 on the cylinder body 25 are respectively connected to the two chambers in the cylinder body 25; In the present invention, the axis of the rotating shaft 21 is parallel to the axis of the rotating drum 20, the second extension arm 22 is installed on the rotating shaft 21 along the radial direction of the rotating shaft 21, and the pressure plate 23 is installed on the end of the second extension arm 22 away from the rotating shaft 21. In this way, when the rotating shaft 21 rotates, it will push the pressure plate 23 to move toward the axis of the rotating drum 20 or away from the axis of the rotating drum 20. Several pressure plates 23 move synchronously, thereby achieving the clamping and loosening of the tube body 1. When several pressure plates 23 clamp the tube body 1, several pressure plates 23 synchronously clamp the tube body 1 plays the role of fixing the axis; when clamping tubes 1 of different diameters, in order to adjust the working surface of the pressing plate 23 to face the outer wall of the tube body, the pressing plate 23 can rotate on the second extension arm 22, and the pressing plate 23 and the second extension arm 22 are connected by an elastic body 24. The elastic body 24 is mainly used to reset the pressing plate 23 and prevent it from rotating at will; the multiple pressing plates 23 on the flanges at both ends of the rotating drum 20 simultaneously fix the tube body 1, thereby improving the fixing strength. When the rotating drum 20 rotates, it can drive the tube body 1 to rotate; When the rotating shaft 21 in the cylinder 25 rotates, it can drive the corresponding partition 26 to move, thereby increasing the space inside the cylinder 25 and reducing the space inside the other. In this way, when the cylinder 25 and each oil pipe 27 are filled with oil, if one rotating shaft 21 rotates, the space inside the cylinder 25 will be reduced, and the oil inside it can be transferred to the adjacent cylinder 25 through the corresponding oil pipe 27. The space inside the cylinder 25 increases and the space inside the other decreases. In this way, multiple rotating shafts 21 can move synchronously. It should be noted that, instead of the oil pipe 1 27 , two oil pipes 2 33 may be provided between a pair of adjacent cylinder bodies 25 on the flange. The two oil pipes 2 33 are respectively connected to the two cylinder bodies 25 . In this way, when one oil pipe 2 33 supplies oil, as the oil pressure and oil flow in the cylinder bodies 25 and the oil pipe 1 27 , the other oil pipe 2 33 will discharge oil, thereby utilizing the oil to control the rotation of the rotating shafts 21 . When the oil supply and discharge positions of the two oil pipes 23 are swapped, the rotation direction of the rotating shafts 21 changes, thereby achieving bidirectional control. As a further optimization, a limit stop 28 is provided in each chamber in the cylinder body 25. The limit stop 28 is used to limit the range of motion of the partition 26 on the rotating shaft 21, and the gap between the limit stop 28 and the rotating shaft 21 is set as a flow-limiting slit 29. The flow-limiting slit 29 can limit the flow rate of the oil, thereby ensuring that the multiple rotating shafts 21 can move synchronously and smoothly, and avoiding a large pressure difference between the multiple rotating shafts 21 when the oil pressure fluctuates, resulting in different rotation angles of the multiple rotating shafts 21; In order to realize the oil supply and discharge work inside the cylinder body 25 on each flange, an outer ring 30 can be provided on each flange, and two annular oil chambers 31 are formed on the inner wall of the outer ring 30. A circular sealing area 32 is provided on the flange. The circular sealing area 32 seals the two annular oil chambers 31, and the circular sealing area 32 and the outer ring 30 can move relative to each other. The two oil pipes 33 on the flange can pass through the circular sealing area 32 and are respectively connected to the two annular oil chambers 31. The two annular oil chambers 31 are respectively connected to the external oil circuit. In this way, when the drum 20 rotates, it will drive the circular sealing area 32 on the flange and the two oil pipes 33 to rotate synchronously, and the external oil circuit can supply oil to the cylinder bodies 25 that are always in a moving state through the two annular oil chambers 31; In order to support the rotating drum 20, a base 34 can be provided, and the two outer rings 30 are fixed on the base 34, thereby using the two outer rings 30 to support the rotating drum 20. A driving motor 35 is provided on the base 34, and a transmission wheel 36 is provided at the output end of the driving motor 35. A transmission ring 37 used in conjunction with the transmission wheel 36 is provided on the outer wall of the rotating drum 20. In this way, the driving motor 35 can drive the rotating drum 20 to rotate through the transmission wheel 36 and the transmission ring 37, thereby providing power for the rotation of the tube body 1.

[0030] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pipe processing device for water supply and drainage construction, characterized in that: It comprises two driving parts that are relatively distributed and a processing part located between the two driving parts and used for cutting the tube body, wherein the driving parts are used to drive the tube body to rotate; The processing portion includes two coaxial adjustment shafts that are relatively distributed on both sides of the axis of the tube body, and a cutting head located between the two adjustment shafts and deviated from the line connecting the two adjustment shafts. The cutting head is used to cut the tube body. Each of the adjustment shafts is provided with an extension arm extending in the radial direction of the adjustment shaft. A bow frame is provided between the two extension arms. The end of the bow frame is slidably inserted into the extension arm along the length direction of the extension arm, and the cutting head is fixed to the middle of the bow frame. Wherein, at least one set of guide structures is provided on the bow frame, and the guide structures are used to make the distance between the cutting head and the axis of the tube body constant.

2. A pipe processing device for water supply and drainage construction according to claim 1, characterized in that: The guide structure includes a guide rail, a slider and a connecting column. The connecting column is rotatably mounted on the bow frame, and the axis of the connecting column coincides with the cutting head. The axis of the connecting column is parallel to the axis of the adjusting shaft. The slider is connected to the connecting column, and the slider slides on the guide rail. The sliding direction of the slider is parallel to the axis of the tube body.

3. A pipe processing device for water supply and drainage construction according to claim 2, characterized in that: The vertical distance between the guide rail and the axis of the adjustment shaft can be adjusted.

4. A pipe processing device for water supply and drainage construction according to claim 3, characterized in that: The distance between the two adjustment shafts can be adjusted.

5. A pipe processing device for water supply and drainage construction according to claim 4, characterized in that: The bow frame includes two right-angle arms and a linear arm located between the two right-angle arms, one end of the right-angle arm is slidably inserted into the corresponding extension arm, and the end of the linear arm is slidably inserted into the other end of the corresponding right-angle arm, and the cutting head is fixed to the middle of the linear arm; Wherein, a synchronization structure is provided between the two right-angle arms, and the synchronization structure is used to make the distance between the cutting head and each of the adjustment shafts equal.

6. A pipe processing device for water supply and drainage construction according to claim 5, characterized in that: The synchronization structure includes a rotating rod arranged in the middle of the linear arm, and the middle of the rotating rod rotates on the linear arm. Both ends of the rotating rod are relatively inclined to each other with inclined rods, and the inclined rods are rotationally connected to the corresponding right-angle arms.

7. A pipe processing device for water supply and drainage construction according to claim 6, characterized in that: Each guide rail is provided with a guide body for guiding the guide rail in an inclined manner.

8. A pipe processing device for water supply and drainage construction according to claim 7, characterized in that: The processing part further includes an outer frame, the guide body is fixed on the outer frame, and a prism shaft is slidably inserted into each of the adjustment shafts, and the prism shaft is rotatably mounted on the outer frame; A support plate is provided on each of the adjusting shafts, and the adjusting shaft rotates on the corresponding support plate. A threaded rod is inserted into each of the support plates, and the threaded rod is threadedly connected to the support plate. The two threaded rods are butt-jointed, and the threads on the two threaded rods rotate in opposite directions. The threaded rods are used to push the support plate and the adjusting shaft to move.

9. A pipe processing device for water supply and drainage construction according to claim 8, characterized in that: The driving part includes a rotating drum capable of self-rotation, the tube body coaxially passes through the rotating drum, flanges are provided at both ends of the rotating drum, and a plurality of rotating shafts are provided in an annular shape on each flange. The rotating shafts rotate on the flanges, and a second extension arm extends from the rotating shaft, and a pressure plate is provided on the second extension arm. The plurality of rotating shafts rotate and push the plurality of pressure plates toward or away from the tube body; Each flange is provided with a plurality of cylinders corresponding to the plurality of rotating shafts, the ends of the rotating shafts are coaxially inserted into the corresponding cylinders, two partitions are provided between the inner wall of the cylinder and the outer wall of the rotating shaft, the two partitions divide the internal space of the cylinder into two chambers, and the two partitions are respectively fixed to the cylinder and the rotating shaft; The two cylinder bodies are connected via an oil pipe 1, and the two oil pipes 1 on the cylinder body are respectively connected to the two chambers in the cylinder body.

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