Sewer line thread milling equipment

Abstract

The invention relates to the technical field of pipeline machining, in particular to sewer pipeline thread milling equipment which is characterized in that a rotating mechanism is connected to a movable frame, a second mounting frame is fixedly connected to the rotating mechanism, a milling cutter is fixedly connected to the second mounting frame, and a material dispersing mechanism used for reducing scrap accumulation between the milling cutter and a pipeline is fixedly connected to the movable frame; and the material dispersing mechanism penetrates through the rotating mechanism. The movable frame moves on the gap between the milling cutter and the outside of the pipeline, and scraps accumulated on the gap between the milling cutter and the outside of the pipeline are cleaned in the moving process of the movable frame, so that the scraps fall off from the gap, accumulation of the scraps on the gap between the milling cutter and the outside of the pipeline is reduced, and the service life of the milling cutter is prolonged. The amount of chippings driven in the rotary milling machining process of the milling cutter is reduced, so that scratches caused by the milling cutter to the edge surface of the sewer line in the rotating process are reduced, and then the milling effect of the milling cutter on the sewer line threads is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline processing, and in particular to a sewer pipeline thread milling device. Background Art

[0002] Sewer pipes refer to the pipe system in a building that is used to discharge sewage, wastewater or rainwater. These pipes play a vital role in daily life and building maintenance.

[0003] When the sewer pipes are in use, the pipes are connected by threads. Therefore, when processing the sewer pipes, it is necessary to perform thread milling on the pipe ends. When performing thread milling on the pipe ends, the rotating mechanism drives the milling cutter to mill the pipe. When the milling cutter mills the pipe, debris will be generated. The milling cutter generally consists of a cutter head and a blade, and there is a gap between the blade body and the pipe. During the milling process of the pipe by the milling cutter head, the debris generated by the processing falls under its own gravity, and part of the fallen debris falls into the gap between the blade body and the pipe. During the milling process, the milling cutter is in a rotating state, and the rotating milling cutter drives the debris in the gap to rotate. As the milling progresses, the debris in the gap gradually increases. When there are too many debris in the gap, scratches will be generated on the sewer pipe, thereby reducing the effect of thread milling of the sewer pipe. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that debris accumulates in the gap between the blade and the pipe. When the milling cutter rotates, a large amount of debris in the gap will be driven to rotate, which will cause scratches on the sewer pipe, thereby reducing the milling effect of the sewer pipe thread. A sewer pipe thread milling device is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A sewer pipe thread milling device is designed, comprising a base frame, a clamping mechanism is fixedly connected to one side of the upper end of the base frame, a movable frame is slidably connected to the other side of the upper end of the base frame, a second electric telescopic rod for driving the movable frame to move is fixedly connected to the base frame, a rotating mechanism is connected to the movable frame, a second mounting frame is fixedly connected to the rotating mechanism, a milling cutter is fixedly connected to the second mounting frame, a bulking mechanism for reducing debris accumulation between the milling cutter and the pipe is fixedly connected to the movable frame, and the bulking mechanism passes through the rotating mechanism.

[0006] Preferably, the clamping mechanism includes a support plate, the support plate is fixedly connected to the base frame, an arc-shaped groove is opened at the upper end of the support plate, the upper end of the support plate is fixedly connected to a first mounting frame, the upper end of the first mounting frame is fixedly connected to a first electric telescopic rod, an extrusion piece is slidably connected to the first mounting frame, the extrusion piece cooperates with the arc-shaped groove, the telescopic end of the first electric telescopic rod is fixedly connected to the extrusion piece, and one side of the support plate is fixedly connected to a limiting plate.

[0007] Preferably, the extrusion member includes a mounting plate, the mounting plate is fixedly connected to the telescopic end of the first electric telescopic rod, both sides of the upper end of the mounting plate are fixedly connected to first guide rods, each of the first guide rods is slidably connected to the first mounting frame, and both sides of the bottom end of the mounting plate are fixedly connected to first arc plates, and the first arc plates cooperate with the arc grooves.

[0008] Preferably, the rotating mechanism includes a motor, the motor is fixedly connected to the movable frame, a rotating tube is rotatably connected to the movable frame, the rotating tube is connected to the output end of the motor through a belt transmission member, one end of the rotating tube is connected to a fixed disk, and the fixed disk is fixedly connected to the second mounting frame.

[0009] Preferably, the bulk material mechanism includes a fixed rod, one end of which is fixedly connected to the movable frame, the other end of the fixed rod passes through the rotating tube and the fixed plate in sequence, and is fixedly connected to a reciprocating screw, a first threaded sleeve is threadedly connected to the reciprocating screw, an upper end of the first threaded sleeve is fixedly connected to a guide plate, a sliding groove is provided on the second mounting frame, the guide plate passes through the sliding groove, the bottom end of the second mounting frame is fixedly connected to a connecting strip, and one end of the connecting strip is fixedly connected to a movable frame.

[0010] Preferably, a collecting box is fixedly connected to the base frame, the collecting box is located below the bulk material mechanism, and an inclined surface is provided at the bottom end of the collecting box.

[0011] Preferably, an air impulse mechanism is fixedly connected to the movable frame for preventing debris from hanging on the movable frame, and the air impulse mechanism includes an air pump, which is fixedly connected to the upper end of the movable frame, and the outlet end of the air pump is connected to a connecting pipe, one end of the connecting pipe is connected to a circular ring pipe, the circular ring pipe and the axis of the movable frame are in the same straight line, and a plurality of air outlet pipes are evenly distributed on the inner ring wall along the axis direction, and one end of each of the air outlet pipes is inclined toward the direction of the movable frame.

[0012] Preferably, mesh plates are fixedly connected to both sides of the guide plate, a sleeve is fixedly connected to one end of the first threaded sleeve, and the sleeve is located between the movable frame and the mesh plate.

[0013] Preferably, the movable frame is connected to a gap adjustment mechanism for changing the gas flow rate on the outlet pipe, and the gap adjustment mechanism includes a driving assembly, and the driving assembly is connected to the movable frame, and second threaded sleeves are connected on both sides of the driving assembly, and each of the second threaded sleeves is connected to a second guide rod, and one end of each of the second guide rods is slidably inserted into the movable frame, and each of the second threaded sleeves is fixedly connected to a connecting rod, and one end of each of the connecting rods is fixedly connected to a second arc plate, and the two second arc plates are located on the outside of the movable frame.

[0014] Preferably, the driving assembly includes a bidirectional screw, which is rotatably connected to the movable frame, both ends of the bidirectional screw are connected to the second threaded sleeve, a first bevel gear is fixedly connected to the bidirectional screw, a second bevel gear is fixedly connected to the output end of the motor, and the second bevel gear is meshingly connected to the first bevel gear.

[0015] The invention provides a sewer pipe thread milling device, which has the following beneficial effects: The movable frame moves on the gap between the milling cutter and the outside of the pipe. During the movement of the movable frame, the accumulated debris on the gap between the milling cutter and the outside of the pipe is cleaned, so that the debris falls from the gap, reducing the accumulation of debris in the gap between the milling cutter and the outside of the pipe. The amount of debris driven by the milling cutter during the rotating milling process is reduced, thereby reducing the scratches on the edge surface of the sewer pipe caused by the milling cutter during the rotation process, thereby improving the milling effect of the milling cutter on the thread of the sewer pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a sewer pipe thread milling device proposed by the present invention Figure 1 ; Figure 2 A schematic diagram of the structure of a sewer pipe thread milling device proposed by the present invention Figure 2 ; Figure 3 A schematic diagram of the structure of the air impact mechanism and the air impact mechanism connection in a sewer pipe thread milling device proposed by the present invention Figure 1 ; Figure 4 A schematic diagram of the structure of the air impact mechanism and the air impact mechanism connection in a sewer pipe thread milling device proposed by the present invention Figure 2 ; Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at A above; Figure 6 It is a schematic cross-sectional structure diagram of the connection between the air impact mechanism and the air impact mechanism in a sewer pipe thread milling device proposed by the present invention; Figure 7 The present invention is a schematic structural diagram of the connection between a movable frame and a driving assembly in a sewer pipe thread milling device proposed by the present invention.

[0017] In the figure: 1, base frame; 2, clamping mechanism; 3, movable frame; 4, second electric telescopic rod; 5, rotating mechanism; 6, second mounting frame; 7, milling cutter; 8, bulk material mechanism; 9, collecting box; 10, air impact mechanism; 11, gap adjustment mechanism; 21, support plate; 22, arc groove; 23, first mounting frame; 24, first electric telescopic rod; 25, extrusion piece; 26, limit plate; 251, mounting plate; 252, first guide rod; 253, first arc plate; 51, motor; 52, rotating tube; 53, belt Transmission member; 54, fixed plate; 81, fixed rod; 82, reciprocating screw; 83, first threaded sleeve; 84, guide plate; 85, connecting strip; 86, movable frame; 101, air pump; 102, connecting pipe; 103, annular pipe; 104, air outlet pipe; 105, mesh plate; 106, sleeve; 111, driving assembly; 112, second threaded sleeve; 113, guide rod; 114, connecting rod; 115, second arc plate; 1111, bidirectional screw; 1112, first bevel gear; 1113, second bevel gear. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely 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] Example 1: Reference Figure 1-4 A sewer pipe thread milling device comprises a base frame 1, a clamping mechanism 2 is fixedly connected to one side of the upper end of the base frame 1, a movable frame 3 is slidably connected to the other side of the upper end of the base frame 1, a second electric telescopic rod 4 for driving the movable frame 3 to move is fixedly connected to the base frame 1, a rotating mechanism 5 is connected to the movable frame 3, a second mounting frame 6 is fixedly connected to the rotating mechanism 5, a milling cutter 7 is fixedly connected to the second mounting frame 6, a bulking mechanism 8 for reducing the accumulation of debris between the milling cutter 7 and the pipe is fixedly connected to the movable frame 3, the bulking mechanism 8 passes through the rotating mechanism 5, a collecting box 9 is fixedly connected to the base frame 1, the collecting box 9 is located below the bulking mechanism 8, and an inclined surface is provided at the bottom end of the collecting box 9; Reference Figure 2The clamping mechanism 2 includes a support plate 21, which is fixedly connected to the base frame 1. An arc-shaped groove 22 is formed at the upper end of the support plate 21. A first mounting frame 23 is fixedly connected to the upper end of the support plate 21. A first electric telescopic rod 24 is fixedly connected to the upper end of the first mounting frame 23. An extrusion piece 25 is slidably connected to the first mounting frame 23. The extrusion piece 25 cooperates with the arc-shaped groove 22. The telescopic end of the first electric telescopic rod 24 is fixedly connected to the extrusion piece 25. A limiting plate 26 is fixedly connected to one side of the support plate 21. Reference Figure 2 The extrusion member 25 includes a mounting plate 251, the mounting plate 251 is fixedly connected to the telescopic end of the first electric telescopic rod 24, both sides of the upper end of the mounting plate 251 are fixedly connected to the first guide rods 252, each first guide rod 252 is slidably connected to the first mounting frame 23, and both sides of the bottom end of the mounting plate 251 are fixedly connected to the first arc plate 253, and the first arc plate 253 cooperates with the arc groove 22; Reference Figure 2-3 The rotating mechanism 5 includes a motor 51, which is fixedly connected to the movable frame 3, and a rotating tube 52 is rotatably connected to the movable frame 3. The rotating tube 52 is connected to the output end of the motor 51 through a belt transmission member 53, and one end of the rotating tube 52 is connected to a fixed disk 54, and the fixed disk 54 is fixedly connected to the second mounting frame 6; Reference Figure 3-4 The bulk material mechanism 8 includes a fixed rod 81, one end of which is fixedly connected to the movable frame 3, the other end of the fixed rod 81 passes through the rotating tube 52 and the fixed plate 54 in sequence, and is fixedly connected to a reciprocating screw 82, a first threaded sleeve 83 is threadedly connected to the reciprocating screw 82, the upper end of the first threaded sleeve 83 is fixedly connected to a guide plate 84, a sliding groove is provided on the second mounting frame 6, the guide plate 84 passes through the sliding groove, the bottom end of the second mounting frame 6 is fixedly connected to a connecting strip 85, and one end of the connecting strip 85 is fixedly connected to a movable frame 86.

[0020] Working principle: The sewer pipe is placed in the arc groove 22, one end of the sewer pipe contacts the limit plate 26, and the limit plate 26 limits one end of the sewer pipe. After the first electric telescopic rod 24 is powered on and started, it drives the mounting plate 251 to move downward by a set distance. The mounting plate 251 moves downward steadily under the guidance of the first guide rod 252. The mounting plate 251 drives the first arc plate 253 to move downward. After the first arc plate 253 moves downward by a set distance, the sewer pipe is squeezed and fixed with the cooperation of the arc groove 22. The fixing effect of the sewer pipe is good, and it is not easy to rotate during the processing. At this time, the blade of the milling cutter 7 contacts the end of the sewer pipe. After the second electric telescopic rod 4 is powered on and started, it drives the movable frame 3 to move a set distance in the direction of the sewer pipe, and the movable frame 3 drives the rotating mechanism 5 to move, and the rotating mechanism 5 drives the milling cutter 7 to move through the second mounting frame 6. At the same time, the motor 51 is powered on and started, and the output end of the motor 51 drives the rotating tube 52 to rotate through the belt transmission member 53, and the rotating tube 52 drives the fixed disk 54 to rotate, and the fixed disk 54 drives the second mounting frame 6 to rotate, and the second mounting frame 6 drives the milling cutter 7 to rotate, and the rotating milling cutter 7 contacts the outer wall of the pipeline and performs milling processing on it, and the debris generated by the milling processing falls under its own gravity, and the fallen debris falls into the collection box 9, and the collection box 9 collects the debris generated by the processing to avoid the dispersion of the debris generated by the processing, and the debris in the collection box 9 rolls along the inclined direction of the inclined surface, so that the debris in the collection box 9 is convenient to clean; After the second mounting frame 6 rotates, it also drives the guide plate 84 to rotate, and the guide plate 84 drives the first threaded sleeve 83 to rotate, and the fixed rod 81 is fixed on the movable frame 3, and the fixed rod 81 fixes the reciprocating screw 82, and the first threaded sleeve 83 is threadedly connected to the reciprocating screw 82, so that the first threaded sleeve 83 reciprocates along the length direction of the reciprocating screw 82 after the first threaded sleeve 83 rotates, and the first threaded sleeve 83 drives the connecting bar 85 to reciprocate in the horizontal direction after the first threaded sleeve 83 moves, and the connecting bar 85 drives the movable frame 86 to reciprocate in the horizontal direction, and the movable frame 86 is located at the milling cutter 7 In the gap between the milling cutter 7 and the outer wall of the sewer pipe, the movable frame 86 moves on the gap between the milling cutter 7 and the outside of the pipe. During the movement of the movable frame 86, the debris accumulated in the gap between the milling cutter 7 and the outside of the pipe is cleaned, so that the debris falls from the gap, reducing the accumulation of debris in the gap between the milling cutter 7 and the outside of the pipe. The amount of debris driven by the milling cutter 7 during the rotating milling process is reduced, thereby reducing the scratches on the edge surface of the sewer pipe caused by the milling cutter 7 during the rotation process, thereby improving the milling effect of the milling cutter 7 on the sewer pipe thread.

[0021] Embodiment 2: During the process of cleaning the debris on the gap between the milling cutter 7 and the outside of the pipe during the movement of the movable frame 86, due to the narrow width of the movable frame 86, part of the debris on the gap is entangled on the movable frame 86, causing the movable frame 86 to contact the outer wall of the pipe through the debris during the horizontal movement, thereby reducing the pipe milling effect. Figure 3-4 and Figure 6As another preferred embodiment of the present invention, the difference from Embodiment 1 is that an air impact mechanism 10 for preventing debris from hanging on the movable frame 86 is fixedly connected to the movable frame 3, and the air impact mechanism 10 includes an air pump 101, and the air pump 101 is fixedly connected to the upper end of the movable frame 3, and the outlet end of the air pump 101 is connected to a connecting pipe 102, and one end of the connecting pipe 102 is connected to a circular ring pipe 103, and the circular ring pipe 103 and the axis of the movable frame 86 are on the same straight line, and a plurality of air outlet pipes 104 are evenly distributed on the inner ring wall of the circular ring pipe 103 along the axis direction, and one end of each air outlet pipe 104 is inclined toward the movable frame 86, and both sides of the guide plate 84 are fixedly connected to a mesh plate 105, and one end of the first threaded sleeve 83 is fixedly connected to a sleeve 106, and the sleeve 106 is located between the movable frame 86 and the mesh plate 105.

[0022] Working principle: When the movable frame 86 cleans the debris on the gap between the milling cutter 7 and the outside of the pipeline, the air pump 101 is powered on and started. After the air pump 101 is started, air is sucked in through the inlet end, and the sucked gas is introduced into the connecting pipe 102. The connecting pipe 102 introduces the gas into the annular tube 103. The annular tube 103 disperses the gas and releases it from different outlet pipes 104. Since one end of the outlet pipe 104 is tilted toward the movable frame 86, the gas released from the outlet pipe 104 is released along the length direction of the outer wall of the pipeline, and the released gas collides vertically with the movable frame 86. Since the gas released from the outlet pipe 104 has a certain flow rate, the gas collides with the movable frame 86 at a certain speed, so that the gas performs gas impact on the debris entangled on the movable frame 86, so that the entangled debris is separated from the movable frame 86, and the amount of debris on the movable frame 86 is reduced, ensuring that the movable frame 86 will not contact the outer wall of the pipeline through the debris during the horizontal movement, thereby improving the pipeline milling effect; The mesh plate 105 and the sleeve 106 are fixed on the first threaded sleeve 83. When the gas released from the gas outlet pipe 104 blows the debris on the movable frame 86, the gas and the debris move toward the mesh plate 105. After the gas and the debris come into contact with the mesh plate 105, the gas passes through the mesh plate 105, and the debris falls on the surface of the mesh plate 105. The first threaded sleeve 83 reciprocates in the horizontal direction. The first threaded sleeve 83 drives the mesh plate 105 to reciprocate. When the mesh plate 105 moves toward the fixed plate 54, The distance between the mesh plate 105 and the air outlet pipe 104 increases, thereby reducing the extrusion pressure generated when the gas contacts the mesh plate 105. After the extrusion pressure between the gas and the mesh plate 105 is reduced, the debris on the mesh plate 105 falls into the collection box 9 under its own gravity. When the mesh plate 105 moves toward the fixed plate 54, it also drives the sleeve 106 to move. The sleeve 106 gradually covers the reciprocating screw 82 to prevent debris from falling on the reciprocating screw 82, thereby ensuring that the sleeve 106 moves smoothly on the reciprocating screw 82.

[0023] Embodiment 3: When the gas released from the gas outlet pipe 104 is released along the length direction of the outer wall of the pipe and impacts the debris wrapped around the movable frame 86, the gas released from the gas outlet pipe 104 is dispersed due to the lack of limit on the outer side of the gas outlet pipe 104, resulting in a small impact force when contacting the movable frame 86, thereby reducing the processing effect of the debris on the movable frame 86, referring to Figure 4-7 As another preferred embodiment of the present invention, the difference from Embodiment 2 is that a gap adjustment mechanism 11 for changing the gas flow rate on the gas outlet pipe 104 is connected to the movable frame 3, and the gap adjustment mechanism 11 includes a driving assembly 111, and the driving assembly 111 is connected to the movable frame 3. Second threaded sleeves 112 are connected to both sides of the driving assembly 111, and each second threaded sleeve 112 is connected to a second guide rod 113, and one end of each second guide rod 113 is slidably plugged into the movable frame 3, and each second threaded sleeve 112 is fixedly connected to a connecting rod 114, and one end of each connecting rod 114 is fixedly connected to a second arc plate 115, and the two second arc plates 115 are located on the outside of the movable frame 86; Reference Figure 7 The driving assembly 111 includes a bidirectional screw 1111, which is rotatably connected to the movable frame 3, both ends of the bidirectional screw 1111 are connected to the second threaded sleeve 112, the bidirectional screw 1111 is fixedly connected to the first bevel gear 1112, and the output end of the motor 51 is fixedly connected to the second bevel gear 1113, and the second bevel gear 1113 is meshedly connected to the first bevel gear 1112.

[0024] Working principle: The output end of the motor 51 also drives the second bevel gear 1113 to rotate, the second bevel gear 1113 drives the first bevel gear 1112 to rotate, the first bevel gear 1112 drives the bidirectional screw 1111 to rotate, and after the bidirectional screw 1111 rotates, under the guidance of the second guide rod 113, the two second threaded sleeves 112 reciprocate along the length direction of the bidirectional screw 1111, each second threaded sleeve 112 drives the connecting rod 114 to move, and each connecting rod 114 drives the second arc plate 115 to move, so that the spacing between the two second arc plates 115 is The change is that the two second curved plates 115 are located on the outer side of the air outlet pipe 104. After the two second curved plates 115 move toward each other, the distance between them and the outer wall of the pipe is reduced, and the channel area formed between the second curved plates 115 and the pipe is small, thereby reducing the dispersion of the gas released from the air outlet pipe 104, thereby improving the processing effect of the debris entangled on the movable frame 86. After the two second curved plates 115 move away from each other, the distance between them and the outer wall of the pipe is increased, which facilitates the debris falling on the second curved plates 115 to fall from the gap between the bottom ends of the two second curved plates 115.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sewer pipe thread milling device, characterized in that: It comprises a base frame (1), wherein: A clamping mechanism (2) is fixedly connected to one side of the upper end of the base frame (1), a movable frame (3) is slidably connected to the other side of the upper end of the base frame (1), a second electric telescopic rod (4) for driving the movable frame (3) to move is fixedly connected to the base frame (1), a rotating mechanism (5) is connected to the movable frame (3), a second mounting frame (6) is fixedly connected to the rotating mechanism (5), a milling cutter (7) is fixedly connected to the second mounting frame (6), a dispersing mechanism (8) for reducing the accumulation of debris between the milling cutter (7) and the pipeline is fixedly connected to the movable frame (3), and the dispersing mechanism (8) passes through the rotating mechanism (5).

2. The sewer pipe thread milling equipment according to claim 1, characterized in that: The clamping mechanism (2) comprises a support plate (21), the support plate (21) being fixedly connected to the base frame (1), an arc-shaped groove (22) being formed at the upper end of the support plate (21), a first mounting frame (23) being fixedly connected to the upper end of the support plate (21), a first electric telescopic rod (24) being fixedly connected to the upper end of the first mounting frame (23), an extrusion piece (25) being slidably connected to the first mounting frame (23), the extrusion piece (25) being matched with the arc-shaped groove (22), a telescopic end of the first electric telescopic rod (24) being fixedly connected to the extrusion piece (25), and a limiting plate (26) being fixedly connected to one side of the support plate (21).

3. The sewer pipe thread milling equipment according to claim 2, characterized in that: The extrusion member (25) comprises a mounting plate (251), the mounting plate (251) being fixedly connected to the telescopic end of the first electric telescopic rod (24), first guide rods (252) being fixedly connected to both sides of the upper end of the mounting plate (251), each of the first guide rods (252) being slidably connected to the first mounting frame (23), and first arc-shaped plates (253) being fixedly connected to both sides of the bottom end of the mounting plate (251), the first arc-shaped plates (253) being matched with the arc-shaped grooves (22).

4. The sewer pipe thread milling equipment according to claim 1, characterized in that: The rotating mechanism (5) comprises a motor (51), the motor (51) being fixedly connected to the movable frame (3), a rotating tube (52) being rotatably connected to the movable frame (3), the rotating tube (52) being connected to an output end of the motor (51) via a belt transmission member (53), one end of the rotating tube (52) being connected to a fixed disk (54), and the fixed disk (54) being fixedly connected to the second mounting frame (6).

5. The sewer pipe thread milling equipment according to claim 4, characterized in that: The bulk material mechanism (8) comprises a fixed rod (81), one end of which is fixedly connected to the movable frame (3), the other end of which passes through the rotating tube (52) and the fixed plate (54) in sequence and is fixedly connected to a reciprocating screw (82), a first threaded sleeve (83) being threadedly connected to the reciprocating screw (82), an upper end of which is fixedly connected to a guide plate (84), a sliding groove being provided on the second mounting frame (6), the guide plate (84) passing through the sliding groove, a connecting strip (85) being fixedly connected to the bottom end of the second mounting frame (6), and one end of which is fixedly connected to a movable frame (86).

6. The sewer pipe thread milling equipment according to claim 1, characterized in that: A collecting box (9) is fixedly connected to the base frame (1), the collecting box (9) is located below the bulk material mechanism (8), and a slope is provided at the bottom end of the collecting box (9).

7. The sewer pipe thread milling equipment according to claim 5, characterized in that: An air impulse mechanism (10) for preventing debris from hanging on the movable frame (86) is fixedly connected to the movable frame (3). The air impulse mechanism (10) comprises an air pump (101). The air pump (101) is fixedly connected to the upper end of the movable frame (3). The outlet end of the air pump (101) is connected to a connecting pipe (102). One end of the connecting pipe (102) is connected to a circular ring pipe (103). The circular ring pipe (103) and the axis of the movable frame (86) are on the same straight line. A plurality of air outlet pipes (104) are evenly spaced on the inner ring wall of the circular ring pipe (103) along the axis direction. One end of each of the air outlet pipes (104) is inclined toward the movable frame (86).

8. The sewer pipe thread milling equipment according to claim 7, characterized in that: Both sides of the guide plate (84) are fixedly connected to mesh plates (105), one end of the first threaded sleeve (83) is fixedly connected to a sleeve (106), and the sleeve (106) is located between the movable frame (86) and the mesh plate (105).

9. The sewer pipe thread milling device according to claim 8, characterized in that: The movable frame (3) is connected to a gap adjustment mechanism (11) for changing the gas flow rate on the gas outlet pipe (104). The gap adjustment mechanism (11) comprises a drive assembly (111). The drive assembly (111) is connected to the movable frame (3). Second threaded sleeves (112) are connected to both sides of the drive assembly (111). Each of the second threaded sleeves (112) is connected to a second guide rod (113). One end of each of the second guide rods (113) is slidably connected to the movable frame (3). Each of the second threaded sleeves (112) is fixedly connected to a connecting rod (114). One end of each of the connecting rods (114) is fixedly connected to a second arc plate (115). The two second arc plates (115) are located outside the movable frame (86).

10. The sewer pipe thread milling device according to claim 9, characterized in that: The driving assembly (111) comprises a bidirectional screw (1111), the bidirectional screw (1111) being rotatably connected to the movable frame (3), both ends of the bidirectional screw (1111) being connected to the second threaded sleeve (112), a first bevel gear (1112) being fixedly connected to the bidirectional screw (1111), a second bevel gear (1113) being fixedly connected to the output end of the motor (51), and the second bevel gear (1113) being meshingly connected to the first bevel gear (1112).

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