Cable conduit dredging device

Abstract

The invention discloses a cable duct dredging device, and belongs to the technical field of cable duct dredging. A cable conduit dredging device comprises a device body, the device body comprises a frame body, a hollow mounting cavity is formed in the frame body, a barrel is arranged in the mounting cavity, an inner cavity is formed in the barrel, and a collecting part and an equipment cavity are formed at the two ends of the inner cavity respectively. The crushing mechanism arranged at the collecting part can directly crush blockages in the cable pipeline, meanwhile, the sealing mechanism and the collecting mechanism are arranged in a matched mode, a sealed space can be formed between the blockages and the crushing mechanism, scattering of the blockages in the crushing process is prevented, and through the collecting mechanism, the blockages in the cable pipeline can be crushed. The cable pipeline dredging device has the advantages that broken blockages can be quickly pumped into the inner cavity to be stored, the problems of accumulation and secondary blockage of the blockages are solved, and meanwhile, a closed space is formed between the blockages and the breaking mechanism, so that the cleaning effect of the collecting mechanism is facilitated, and the dredging operation of a cable pipeline can be efficiently completed.

Description

Technical Field

[0001] The present invention relates to the technical field of cable duct dredging, and more specifically, to a cable duct dredging device. Background Art

[0002] At present, with the rapid development of the overall economic strength of our country, urban construction and livelihood infrastructure projects have been vigorously developed. Due to the shortage of urban land, heavy traffic pressure, and urban appearance construction, etc., underground cable power transmission methods are mostly adopted in cities.

[0003] Underground cables are often laid in cable trenches, tunnels, pipes or indoors. During the construction of cable ducts, due to the influence of other municipal engineering constructions or geological structure deformation and displacement, the ducts are squeezed and deformed, and foreign matters such as soil and sand enter the protection pipes, resulting in blockage inside the protection pipe ducts. Summary of the Invention

[0004] The present invention provides a cable duct dredging device, which can overcome certain or some defects of the prior art.

[0005] A cable duct dredging device according to the present invention includes a device main body. The device main body includes a frame body. A hollow installation cavity is formed inside the frame body. A cylinder is arranged in the installation cavity. An inner cavity is formed inside the cylinder. A collection part and an equipment cavity are respectively formed at both ends of the inner cavity. A crushing mechanism for crushing the blockage in the cable duct is arranged at the collection part. A sealing mechanism that fits with the inner wall of the cable duct is arranged at the corresponding outer wall of the collection part. A collection mechanism for cooperating with the sealing mechanism to pump the crushed blockage into the inner cavity is arranged at the equipment cavity.

[0006] A cable duct dredging device of the present disclosure includes a device. The crushing mechanism arranged at the collection part can directly crush the blockage in the cable duct. At the same time, with the cooperation of the sealing mechanism and the collection mechanism, a closed space can be formed between the blockage and the crushing mechanism to prevent the scattering of the blockage during the crushing process. And through the collection mechanism, the crushed blockage can be quickly pumped into the inner cavity for storage, avoiding the accumulation and secondary blockage problems of the blockage. At the same time, the closed space formed between the blockage and the crushing mechanism is convenient for the cleaning effect of the collection mechanism, so the cable duct dredging operation can be efficiently completed.

[0007] It can be understood that a collection part and an equipment cavity are respectively arranged at both ends of the inner cavity, realizing the integration of the functions of crushing, sealing and collection, reducing the link conversion during the operation, and improving the operation efficiency.

[0008] Preferably, traveling devices are provided at equal intervals along the circumferential direction of the outer wall of the frame. The traveling devices include a driving traveling mechanism, an adjusting mechanism, and an auxiliary traveling mechanism. The adjusting mechanism is used to drive the driving traveling mechanism and the auxiliary traveling mechanism to fit the inner wall of the cable duct. The driving traveling mechanism is used to drive the cylinder to move along the extending direction of the cable duct.

[0009] Through the arrangement of the adjusting mechanism, the driving traveling mechanism and the auxiliary traveling mechanism can be driven to fit the inner wall of the cable duct, and cable ducts with different inner diameters can be fitted, enhancing the adaptability and stability of the device.

[0010] It can be understood that the traveling mechanism and the auxiliary traveling mechanism are arranged at equal intervals along the circumferential direction of the outer wall of the frame, so that the device is evenly stressed during walking, avoiding the phenomenon of device tilt or jamming caused by uneven stress.

[0011] Preferably, the frame includes a plurality of fixing rings coaxially arranged with the cylinder, and a plurality of fixing rods for connecting the plurality of fixing rings are provided between the plurality of fixing rings.

[0012] Through the above structure, while ensuring the stability and rigidity of the frame, the self-weight of the frame is reduced, improving the practicability of the device.

[0013] It can be understood that the fixing rings and the fixing rods are relatively simple geometric shapes, which are convenient for processing and manufacturing.

[0014] Preferably, the adjusting mechanism includes a first lead screw rotatably provided between adjacent fixing rings and a double-shaft motor rotatably provided at the outer wall of the fixing ring. A double-shaft motor for driving the rotation of the adjacent first lead screw is provided between the adjacent first lead screws. First moving blocks are slidably provided at the first lead screws. Adjusting arms are hinged at the support arms, and the ends of the adjusting arms away from the support arms are respectively hinged at the corresponding first moving blocks. The driving traveling mechanism and the auxiliary traveling mechanism are respectively provided at the corresponding support arms.

[0015] By driving the first lead screw to rotate through the double-shaft motor, and then driving the first moving block to move, and driving the support arm to move through the adjusting arm, the driving traveling mechanism and the auxiliary traveling mechanism are made to fit the inner wall of the cable duct, enabling the device to adapt to cable ducts with different diameters and improving the versatility of the device.

[0016] Preferably, the driving traveling mechanism includes a driving wheel rotatably provided at the corresponding support arm and a second motor for driving the driving wheel to rotate.

[0017] By driving the driving wheel to rotate through the second motor, the cylinder is driven to move along the extending direction of the cable duct, enabling the device to efficiently walk in the cable duct and complete the dredging operation.

[0018] Preferably, the auxiliary walking mechanism includes auxiliary wheels rotatably arranged at corresponding support arms. A ratchet wheel is provided on the side wall of the auxiliary wheel, and a fixed shaft is provided on the side wall at the corresponding support arm. A pawl meshing with the ratchet wheel is rotatably arranged at the fixed shaft, and the pawl is used to prevent the auxiliary wheel from reversing; wherein, the fixed shaft is located in the middle of the pawl.

[0019] By meshing the pawl with the ratchet wheel, the reverse rotation of the auxiliary wheel is prevented, ensuring the stability of the device during walking, enabling the device to maintain its position unchanged when encountering resistance, and improving the safety of operation.

[0020] Preferably, the closing mechanism includes a plurality of mounting arms rotatably arranged on the outer wall of the collection part and a second lead screw arranged at a fixed ring corresponding to the auxiliary walking mechanism. The plurality of mounting arms are arranged on the outer wall of the collection part at equal intervals. An oilcloth is jointly provided on the outer walls of the plurality of mounting arms. An airbag fitting the inner wall of the cable duct is provided at the mounting arm. A third motor for driving the second lead screw to rotate is provided at the fixed ring. A second moving block is slidably arranged on the second lead screw. A driving arm is hinged between the second moving block and the mounting arm; the pawl has a connecting part, and a tension spring is arranged between the connecting part and the second moving block, and the tension spring is used to drive the pawl to press towards the ratchet wheel.

[0021] By driving the second lead screw to rotate through the third motor, the second moving block is driven to move along the second lead screw. The second moving block drives the mounting arm to rotate outwards, and then drives the oilcloth and the airbag to unfold or contract, realizing the closing or opening of the cable duct.

[0022] Meanwhile, when the second moving block moves, the tension spring is stretched to drive the pawl to press against the ratchet wheel, so that when the crushing mechanism crushes the blockage, the ratchet wheel at the auxiliary walking mechanism is always in a state of being pressed by the pawl, so that the auxiliary wheel will not reverse, improving the stability of the crushing mechanism during crushing and the crushing effect.

[0023] Preferably, a bracket is provided on the inner wall of the collection part. The crushing mechanism includes a housing arranged at the bracket. A first motor is arranged in the housing, and a crushing drill bit for crushing the blockage in the cable duct is arranged at the output end of the first motor.

[0024] Through the above structure, the blockage in the cable duct can be effectively crushed, and in cooperation with the auxiliary walking mechanism, the blockage inside the duct can be gradually dredged, improving the dredging effect and efficiency.

[0025] Preferably, a collection port is formed inside the inner cavity. A guide pipe coaxially arranged with the inner cavity is formed at the collection port, and a collection cavity for collecting the crushed blockage is formed between the guide pipe and the inner cavity.

[0026] Through the synergistic effect of the collection port, the guiding pipe, and the collection cavity, the broken blockages can be quickly collected into the collection cavity, avoiding the scattering or loss of the blockages during the collection process.

[0027] It can be understood that the collection cavity formed between the guiding pipe and the inner cavity provides a temporary storage space for the broken blockages, avoiding the influence of the broken blockages on subsequent dredging.

[0028] Preferably, the collection mechanism includes a filter plate, a suction fan, and a cover plate that are detachably arranged in sequence in the equipment cavity. The filter plate is used to filter the broken blockages, and the suction fan is used to cooperate with the closing mechanism to suck the broken blockages at the collection part into the inner cavity.

[0029] Since each component (filter plate, suction fan, cover plate) of the collection mechanism is designed to be detachable, it is convenient for regular maintenance and cleaning of the equipment.

[0030] It can be understood that through the setting of the filter plate, larger broken blockages are effectively prevented from entering the suction fan, protecting the normal operation of the suction fan. Description of the Drawings

[0031] Figure 1 It is a schematic diagram of the overall structure of a cable pipeline dredging device;

[0032] Figure 2 It is a schematic diagram of the overall frame structure of a cable pipeline dredging device;

[0033] Figure 3 It is a schematic diagram of the overall side view sectional structure of a cable pipeline dredging device;

[0034] Figure 4 It is a schematic diagram of the overall side view exploded sectional structure of a cable pipeline dredging device;

[0035] Figure 5 For Figure 4 The partial enlarged schematic diagram at A in

[0036] 100. Device main body; 110. Frame body; 120. Cylindrical body; 130. Crushing mechanism; 140. Sealing mechanism; 150. Driving and traveling mechanism; 160. Adjusting mechanism; 170. Auxiliary traveling mechanism; 210. Fixed ring; 220. Fixed rod; 310. Inner cavity; 320. Collection port; 330. Guide pipe; 340. Collection part; 350. Bracket; 410. First motor; 420. Crushing drill bit; 430. Filter plate; 440. Exhaust fan; 450. Cover plate; 460. Biaxial motor; 461. First lead screw; 462. Support arm; 463. First moving block; 464. Adjusting arm; 465. Driving wheel; 466. Second motor; 510. Third motor; 520. Second lead screw; 530. Second moving block; 540. Driving arm; 550. Mounting arm; 560. Oilcloth; 561. Airbag; 570. Auxiliary wheel; 580. Ratchet; 581. Pawl; 582. Connecting part; 590. Tension spring. Detailed implementation manners

[0037] To further understand the content of the present invention, the present invention will be described in detail in combination with embodiments. It should be understood that the embodiments are only for explaining the present invention rather than limiting it.

[0038] Embodiment 1

[0039] Please refer to Figures 1 - 5 , this embodiment provides a cable duct dredging device, including a device main body 100. The device main body 100 includes a frame body 110. A hollow installation cavity is formed inside the frame body 110. A cylindrical body 120 is arranged in the installation cavity. An inner cavity 310 is formed inside the cylindrical body 120. Collection parts 340 and an equipment cavity are respectively formed at both ends of the inner cavity 310. A crushing mechanism 130 for crushing the blockage in the cable duct is arranged at the collection part 340. A sealing mechanism 140 that fits with the inner wall of the cable duct is arranged at the corresponding outer wall of the collection part 340. A collection mechanism for cooperating with the sealing mechanism 140 to pump the crushed blockage into the inner cavity 310 is arranged at the equipment cavity.

[0040] A cable duct dredging device disclosed in the present disclosure includes a device. The crushing mechanism 130 arranged at the collection part 340 can directly crush the blockage in the cable duct. At the same time, with the cooperation of the sealing mechanism 140 and the collection mechanism, a closed space can be formed between the blockage and the crushing mechanism 130 to prevent the scattering of the blockage during the crushing process. And through the collection mechanism, the crushed blockage can be quickly pumped into the inner cavity 310 for storage, avoiding the accumulation and secondary blockage problems of the blockage. At the same time, the formation of a closed space between the blockage and the crushing mechanism 130 is convenient for the cleaning effect of the collection mechanism. Therefore, the dredging operation of the cable duct can be efficiently completed.

[0041] It can be understood that a collection part 340 and an equipment cavity are respectively arranged at both ends of the inner cavity 310, realizing the integration of the functions of crushing, sealing and collection, reducing the process conversion during operation, and improving the operation efficiency.

[0042] In this embodiment, traveling devices are arranged on the outer wall of the frame body 110 at equal intervals in the circumferential direction. The traveling devices include a driving traveling mechanism 150, an adjusting mechanism 160 and an auxiliary traveling mechanism 170. The adjusting mechanism 160 is used to drive the traveling mechanism 150 and the auxiliary traveling mechanism 170 to fit with the inner wall of the cable duct, and the driving traveling mechanism 150 is used to drive the cylinder body 120 to move along the extending direction of the cable duct.

[0043] Through the setting of the adjusting mechanism 160, the driving traveling mechanism 150 and the auxiliary traveling mechanism 170 can be driven to fit with the inner wall of the cable duct, and cable ducts with different inner wall diameters can be fitted, enhancing the adaptability and stability of the device.

[0044] It can be understood that the traveling mechanism 150 and the auxiliary traveling mechanism 170 are arranged at equal intervals in the circumferential direction on the outer wall of the frame body 110, so that the device is evenly stressed during walking, avoiding the device tilt or jamming phenomenon caused by uneven stress.

[0045] In this embodiment, the frame body 110 includes a plurality of fixing rings 210 coaxially arranged with the cylinder body 120, and a plurality of fixing rods 220 for connecting the plurality of fixing rings 210 are arranged between the plurality of fixing rings 210.

[0046] Through the above structure, while ensuring the stability and rigidity of the frame body 110, the self-weight of the frame body 110 is reduced, and the practicability of the device is improved.

[0047] It can be understood that both the fixing ring 210 and the fixing rod 220 are relatively simple geometric shapes, which are convenient for processing and manufacturing.

[0048] In this embodiment, the adjusting mechanism 160 includes a first lead screw 461 rotatably arranged between adjacent fixing rings 210 and a double-shaft motor 460 rotatably arranged at the outer wall of the fixing ring 210. A double-shaft motor 460 for driving the rotation of the adjacent first lead screws 461 is arranged between the adjacent first lead screws 461. First moving blocks 463 are slidably arranged at the first lead screws 461. Adjusting arms 464 are hinged to the support arms 462 respectively. The ends of the adjusting arms 464 far away from the support arms 462 are respectively hinged to the corresponding first moving blocks 463. The driving traveling mechanism 150 and the auxiliary traveling mechanism 170 are respectively arranged at the corresponding support arms 462.

[0049] The first lead screw 461 is driven to rotate by a biaxial motor 460, and then the first moving block 463 is driven to move. The support arm 462 is driven to move through the adjustment arm 464, so as to drive the walking mechanism 150 and the auxiliary walking mechanism 170 to fit the inner wall of the cable duct, enabling the device to adapt to cable ducts with different diameters and improving the versatility of the device.

[0050] In this embodiment, the driving walking mechanism 150 includes a driving wheel 465 rotatably arranged at the corresponding support arm 462 and a second motor 466. The second motor 466 is used to drive the driving wheel 465 to rotate.

[0051] The driving wheel 465 is driven to rotate by the second motor 466, so as to drive the cylinder 120 to move along the extending direction of the cable duct, enabling the device to efficiently walk in the cable duct and complete the dredging operation.

[0052] In this embodiment, the auxiliary walking mechanism 170 includes an auxiliary wheel 570 rotatably arranged at the corresponding support arm 462. A ratchet 580 is arranged on the side wall of the auxiliary wheel 570. A fixed shaft is arranged on the side wall of the corresponding support arm 462, and a pawl 581 meshing with the ratchet 580 is rotatably arranged at the fixed shaft. The pawl 581 is used to prevent the auxiliary wheel 570 from reversing; wherein, the fixed shaft is located at the middle of the pawl 581.

[0053] The reverse rotation of the auxiliary wheel 570 is prevented by the meshing of the pawl 581 and the ratchet 580, ensuring the stability of the device during walking, enabling the device to keep its position unchanged when encountering resistance, and improving the safety of the operation.

[0054] In this embodiment, the closing mechanism 140 includes a plurality of mounting arms 550 rotatably arranged on the outer wall of the collecting part 340 and a second lead screw 520 arranged at the fixing ring 210 corresponding to the auxiliary walking mechanism 170. The plurality of mounting arms 550 are equidistantly arranged on the outer wall of the collecting part 340. An oilcloth 560 is jointly arranged on the outer walls of the plurality of mounting arms 550. An airbag 561 fitting the inner wall of the cable duct is arranged at the mounting arm 550. A third motor 510 for driving the second lead screw 520 to rotate is arranged at the fixing ring 210. A second moving block 530 is slidably arranged on the second lead screw 520. A driving arm 540 is hinged between the second moving block 530 and the mounting arm 550; the pawl 581 has a connecting part 582, and a tension spring 590 is arranged between the connecting part 582 and the second moving block 530. The tension spring 590 is used to drive the pawl 581 to press towards the ratchet 580.

[0055] The second lead screw 520 is driven to rotate by the third motor 510, thereby driving the second moving block 530 to move along the second lead screw 520. The second moving block 530 drives the mounting arm 550 to rotate outwards, and then drives the oilcloth 560 and the airbag 561 to unfold or contract, realizing the closing or opening of the cable duct.

[0056] Meanwhile, when the second moving block 530 moves, it drives the tension spring 590 to stretch, causing the pawl 581 to press against the ratchet wheel 580. When the crushing mechanism 130 crushes the blockage, the ratchet wheel 580 at the auxiliary walking mechanism 170 is always in a state of being pressed by the pawl 581, so that the auxiliary wheel 570 will not reverse, improving the stability of the crushing mechanism 130 during crushing and enhancing the crushing effect.

[0057] In this embodiment, a bracket 350 is provided on the inner wall of the collection part 340. The crushing mechanism 130 includes a housing provided at the bracket 350. A first motor 410 is provided inside the housing, and a crushing drill bit 420 for crushing the blockage in the cable duct is provided at the output end of the first motor 410.

[0058] With the above structure, the blockage in the cable duct can be effectively crushed, and in cooperation with the auxiliary walking mechanism, the blockage inside the duct can be gradually cleared, improving the clearing effect and efficiency.

[0059] In this embodiment, a collection port 320 is formed inside the inner cavity 310. A guide tube 330 coaxial with the inner cavity 310 is formed at the collection port 320. A collection cavity for collecting the crushed blockage is formed between the guide tube 330 and the inner cavity 310.

[0060] Through the coordinated action of the collection port 320, the guide tube 330 and the collection cavity, the crushed blockage can be quickly collected into the collection cavity, avoiding the scattering or loss of the blockage during the collection process.

[0061] It can be understood that the collection cavity formed between the guide tube 330 and the inner cavity 310 provides a temporary storage space for the crushed blockage, avoiding the influence of the crushed blockage on the subsequent clearing.

[0062] In this embodiment, the collection mechanism includes a filter plate 430, a suction fan 440 and a cover plate 450 that are sequentially detachably arranged in the equipment cavity. The filter plate 430 is used to filter the crushed blockage, and the suction fan 440 is used to cooperate with the closing mechanism 140 to suck the crushed blockage at the collection part 340 into the inner cavity 310.

[0063] Since each component of the collection mechanism (filter plate 430, suction fan 440, cover plate 450) is designed to be detachable, it is convenient to perform regular maintenance and cleaning of the equipment.

[0064] It can be understood that through the setting of the filter plate 430, larger crushed blockage is effectively prevented from entering the suction fan 440, protecting the normal operation of the suction fan 440.

[0065] It is easily understandable that those skilled in the art can combine, split, reorganize, etc. the embodiments provided in this application to obtain other embodiments on the basis of one or several embodiments of this application, and these embodiments do not exceed the protection scope of this application.

[0066] The above has schematically described the present invention and its implementation manners. This description is not restrictive. What is shown in the embodiments is only part of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

[0067] It is easily understandable that those skilled in the art can combine, split, reorganize, etc. the embodiments provided in this application to obtain other embodiments on the basis of one or several embodiments of this application, and these embodiments do not exceed the protection scope of this application.

[0068] The above has schematically described the present invention and its implementation manners. This description is not restrictive. What is shown in the embodiments is only part of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A cable duct dredging device, characterized in that: The device comprises a device body (100), wherein the device body (100) comprises a frame (110), wherein a hollow installation cavity is formed inside the frame (110), wherein a cylinder (120) is arranged inside the installation cavity, wherein an inner cavity (310) is formed inside the cylinder (120), wherein a collecting portion (340) and an equipment cavity are respectively formed at both ends of the inner cavity (310), wherein a crushing mechanism (130) for crushing blockages in the cable duct is arranged at the collecting portion (340), wherein a sealing mechanism (140) which is in contact with the inner wall of the cable duct is arranged at the corresponding outer wall of the collecting portion (340), and wherein a collecting mechanism which cooperates with the sealing mechanism (140) to draw the crushed blockages into the inner cavity (310) is arranged at the equipment cavity.

2. A cable duct dredging device according to claim 1, characterized in that: The outer wall of the frame (110) is provided with walking devices at equal intervals along the circumferential direction, and the walking devices include a driving walking mechanism (150), an adjusting mechanism (160) and an auxiliary walking mechanism (170). The adjusting mechanism (160) is used to drive the walking mechanism (150) and the auxiliary walking mechanism (170) to fit the inner wall of the cable duct, and the driving walking mechanism (150) is used to drive the cylinder (120) to move along the extension direction of the cable duct.

3. A cable duct dredging device according to claim 2, characterized in that: The frame body (110) comprises a plurality of fixing rings (210) coaxially arranged with the cylinder body (120), and a plurality of fixing rods (220) for connecting the plurality of fixing rings (210) are arranged between the plurality of fixing rings (210).

4. A cable duct dredging device according to claim 3, characterized in that: The adjusting mechanism (160) comprises a first lead screw (461) rotatably arranged between adjacent fixed rings (210) and a double-axis motor (460) rotatably arranged at the outer wall of the fixed ring (210); a double-axis motor (460) for driving the adjacent first lead screws (461) to rotate is arranged between adjacent first lead screws (461); a first moving block (463) is slidably arranged at each of the first lead screws (461); an adjusting arm (464) is hinged at each of the support arms (462); one end of the adjusting arm (464) away from the support arm (462) is respectively hinged at the corresponding first moving block (463); and the driving walking mechanism (150) and the auxiliary walking mechanism (170) are respectively arranged at the corresponding support arms (462).

5. A cable duct dredging device according to claim 4, characterized in that: The driving walking mechanism (150) comprises a driving wheel (465) rotatably arranged at the corresponding support arm (462) and a second motor (466), wherein the second motor (466) is used to drive the wheel (465) to rotate.

6. A cable duct dredging device according to claim 4, characterized in that: The auxiliary walking mechanism (170) comprises an auxiliary wheel (570) rotatably arranged at a corresponding support arm (462), a ratchet (580) is arranged at a side wall of the auxiliary wheel (570), a fixed shaft is arranged at the side wall of the corresponding support arm (462), a ratchet (581) rotatably arranged at the fixed shaft and engaged with the ratchet (580), the ratchet (581) is used to prevent the auxiliary wheel (570) from reversing; wherein the fixed shaft is located at the middle of the ratchet (581).

7. A cable duct dredging device according to claim 6, characterized in that: The sealing mechanism (140) comprises a plurality of mounting arms (550) rotatably arranged on the outer wall of the collecting portion (340) and a second lead screw (520) arranged at a fixed ring (210) corresponding to the auxiliary walking mechanism (170), the plurality of mounting arms (550) being arranged at equal intervals on the outer wall of the collecting portion (340), the outer walls of the plurality of mounting arms (550) being provided with a tarpaulin (560), the mounting arms (550) being provided with an air bag (561) which is in contact with the inner wall of the cable duct, the fixed ring (210) being provided with a plurality of mounting arms (550) and the plurality of mounting arms (550) being provided with an air bag (561) which is in contact with the inner wall of the cable duct, and the fixing ring (210) being provided with a plurality of mounting arms (550). 0) is provided with a third motor (510) for driving the second lead screw (520) to rotate, the second lead screw (520) is slidably provided with a second moving block (530), and a driving arm (540) is hinged between the second moving block (530) and the mounting arm (550); the pawl (581) has a connecting portion (582), and a tension spring (590) is provided between the connecting portion (582) and the second moving block (530), and the tension spring (590) is used to drive the pawl (581) to be pressed in the direction of the pawl (581).

8. The cable duct dredging device according to claim 1, characterized in that: A bracket (350) is provided on the inner wall of the collecting portion (340), and the crushing mechanism (130) comprises a shell provided on the bracket (350), a first motor (410) is provided in the shell, and a crushing drill bit (420) for crushing blockages in the cable duct is provided at the output end of the first motor (410).

9. A cable duct dredging device according to claim 1, characterized in that: A collecting port (320) is formed inside the inner cavity (310), a guide tube (330) coaxially arranged with the inner cavity (310) is formed at the collecting port (320), and a collecting cavity for collecting broken blockages is formed between the guide tube (330) and the inner cavity (310).

10. The cable duct dredging device according to claim 1, characterized in that: The collecting mechanism comprises a filter plate (430), an exhaust fan (440) and a cover plate (450) which are detachably arranged in sequence in the equipment cavity. The filter plate (430) is used to filter the broken blockages. The exhaust fan (440) is used to cooperate with the sealing mechanism (140) to extract the broken blockages at the collecting part (340) into the inner cavity (310).

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