A municipal pipe well overhauling device

Abstract

The utility model discloses a kind of municipal pipe well overhauling devices, it is related to the technical field of overhauling, the device includes overhauling seat and the supporting leg of four corner positions of being set in its lower end, the lower end of each supporting leg is equipped with a walking wheel for walking, the outer side of the overhauling seat is equipped with the firm mechanism for being fixed in corresponding position, the overhauling seat is equipped with a crossbeam above, the crossbeam lower end is equipped with the hoisting mechanism for just lifting well lid and the cutting mechanism for cutting the ground outside well mouth, the crossbeam side is connected for driving its up-down motion lifting mechanism, the utility model is designed to the drawback of existing cutting, can be ringed cutting to the ground outside well mouth, this cutting is integral type cutting, well mouth of different diameter can also be adjusted cutting radius to adapt, effectively improve processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of well maintenance technology, specifically a municipal well maintenance device. Background Technology

[0002] Urban construction involves numerous underground pipelines, such as sewers, underground gas pipelines, and communication pipelines. These pipelines require an exit to the surface at regular intervals. If these exits are not properly protected, they can endanger the safety of pedestrians and vehicles. Therefore, manhole covers and frames are needed to cover these exits and prevent pedestrians and vehicles from falling in. Since these manhole covers and frames are exposed to the road surface, vehicle wheels directly run over and impact them, causing structural damage over time. When vehicles pass over these damaged covers and frames, they experience severe bumps and can even affect the safety of vehicles and pedestrians. In such cases, the damaged manhole covers and frames must be replaced. Repairing these structures requires cutting around the manhole opening to create a notch, which is then filled with cement. Current methods involve cutting around the outside of the manhole opening with a cutting tool, which is time-consuming, requires pre-marking, and necessitates manual cutting around the opening, resulting in low efficiency and safety hazards.

[0003] Based on this, a municipal manhole maintenance device is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0004] The purpose of this invention is to provide a municipal manhole repair device to solve the problem that the existing municipal manhole repair process, which involves cutting around the outside of the manhole opening with a cutting blade, is time-consuming and inefficient.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A municipal manhole maintenance device includes a maintenance base and four support legs located at its lower corners. Each support leg has a walking wheel at its lower end. The maintenance base has a stabilizing mechanism on its outer side for fixing it in the corresponding position. A crossbeam is provided above the maintenance base. The lower end of the crossbeam is provided with a lifting mechanism for lifting the manhole cover and a cutting mechanism for cutting the ground outside the manhole opening. A lifting mechanism is connected to one side of the crossbeam for driving its up and down movement. The lifting mechanism cooperates with the lifting mechanism to complete the lifting operation of the manhole cover. The lifting mechanism cooperates with the cutting mechanism to feed the cutting mechanism. The upper end of the maintenance base is also provided with a material loading mechanism for supporting the manhole cover.

[0007] The cutting mechanism includes a mounting base located below the crossbeam, a U-shaped frame at the upper end of the mounting base, a second motor connected to the U-shaped frame for driving its rotation, the second motor being located at the upper end of the crossbeam, two cutting blades symmetrically arranged on the outer side of the mounting base for cutting the ground, the two cutting blades being connected to an adjusting component for adjusting the distance between them to adjust the cutting radius, and an auxiliary support component for supporting the U-shaped frame at the lower end of the crossbeam.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In one alternative: the adjusting component includes a double-headed telescopic cylinder located in the middle of the mounting base. Each of the two output ends of the double-headed telescopic cylinder is provided with a connecting side rod. Each connecting side rod passes through a perforation on the surface of the U-shaped frame. The outer end of each connecting side rod is provided with a vertically downward-facing mounting side plate. Each mounting side plate has a cutting blade rotatably mounted at its lower end. The cutting blade is also connected to a friction transmission component for driving its rotation.

[0010] In one alternative embodiment: the friction transmission component includes a fixed shaft positioned at the center of the cutting blade, the end of which is rotatably connected to a mounting side plate. A second transmission wheel is mounted on the fixed shaft. A first transmission wheel is rotatably mounted on the upper side of the mounting side plate. The first and second transmission wheels are connected by a transmission belt. A transmission shaft is slidably mounted in a through hole in the middle of the first transmission wheel. A rotation limiter is provided between the transmission shaft and the first transmission wheel to restrict their relative rotation. The inner end of the transmission shaft is rotatably connected to a bearing seat at the bottom of the mounting base. The outer end of the transmission shaft passes through the mounting side plate and is connected to the middle position of the friction wheel. An anti-slip layer is provided on the outer side of the friction wheel. A friction ring is provided below the crossbeam where the friction wheel is located. The friction ring abuts against the upper or lower side of the friction wheel, and friction is generated during the contact. The friction ring is fixedly connected to the lower end of the crossbeam by a first hanger.

[0011] In one alternative embodiment, the rotation limiting member includes a rotation limiting groove disposed on the outside of the drive shaft and a limiting protrusion disposed on the inner wall of the through hole in the middle of the first drive wheel.

[0012] In one alternative: the auxiliary support includes side shafts symmetrically arranged on both sides of the U-shaped frame, each side shaft having a rotatable support wheel, the lower side of the support wheel being in contact with the upper end face of the auxiliary support ring, and the upper end of the auxiliary support ring being connected and fixed to the bottom of the crossbeam via a second hanger.

[0013] In one alternative: the hoisting mechanism includes crossbars on both sides of the lower end of the crossbeam, each crossbar having a rope box at both ends, and the traction end of the rope box having a hook.

[0014] In one alternative embodiment: the material loading mechanism includes a sliding seat slidably disposed on the upper end of the maintenance seat, a material loading plate that mates with the maintenance opening on one side of the sliding seat, a guide hole with a rectangular cross-section opened on the lower end face of the sliding seat, a guide slider that mates with the guide hole on the upper end of the maintenance seat, a push screw hole opened at the end of the sliding seat, a first screw that mates with the push screw hole, the first screw being connected to a first motor for driving its rotation, and a plurality of material loading grids distributed on the upper end face of the material loading plate.

[0015] In one alternative embodiment: the lifting mechanism includes a column disposed on one side of the upper end of the maintenance seat, a lifting slider slidably sleeved on the column, a reinforcing rib for improving mechanical performance provided between the lifting slider and the first screw, a lifting transmission block provided on one side of the lifting slider, a transmission screw hole provided on the lifting transmission block, a second screw being fitted in the transmission screw hole, the upper end of the second screw being rotatably connected to the side block at the top of the column, and the lower end of the second screw being connected to the output end of the lifting motor at the upper end of the maintenance seat.

[0016] In one alternative: the stabilizing mechanism includes stabilizing mounting bases symmetrically arranged on the outside of the maintenance base, each stabilizing mounting base having a stabilizing push rod mounted on its upper end, the output end of the stabilizing push rod having a stabilizing plate for supporting the ground.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. This invention addresses the shortcomings of existing cutting methods by enabling circumferential cutting of the ground outside the wellhead. This cutting is an integral cutting method, and the cutting radius can be adjusted to adapt to wellheads of different diameters, effectively improving processing efficiency.

[0019] 2. This invention provides protection by being erected above the wellhead, thus improving the safety of repairs. In addition, it can lift the well cover and buffer it with a loading mechanism, eliminating the need for other lifting equipment, making it highly practical. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the other side of the structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the upper structure of the cutting mechanism of the present invention.

[0023] Figure 4 This is a schematic diagram of the friction ring and mounting base structure of the present invention.

[0024] Figure 5This is a schematic diagram of the transmission shaft structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the auxiliary support ring and support wheel structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the first transmission wheel and transmission shaft structure of the present invention.

[0027] Figure reference numerals: 11. Inspection seat; 12. Inspection opening; 13. First motor; 14. Support leg; 15. First screw; 16. Guide slider; 17. Stabilizing plate; 18. Stabilizing mounting seat; 19. Stabilizing push rod; 20. Sliding seat; 21. Material loading plate; 22. Material loading grid; 23. Friction wheel; 24. First lifting rod; 25. Crossbeam; 27. Second motor; 28. Reinforcing rib; 29. ​​Second screw; 30. Lifting slider; 31. Lifting rope box; 32. Friction ring; 33. Column; 34. Lifting motor; 35. Traveling wheel; 36. Lifting transmission block; 37. Hook; 38. Cutting mechanism; 39. First transmission wheel; 40. Transmission belt; 41. Transmission shaft; 42. Double-headed telescopic cylinder; 43. Mounting seat; 44. Auxiliary support ring; 45. Cutting blade; 46. Mounting side plate; 47. Support wheel; 48. U-shaped frame; 49. Connecting side rod; 50. Second lifting rod; 51. Bearing seat; 52. Rotation limit groove; 53. Second transmission wheel. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] In one embodiment, such as Figures 1-7 As shown, a municipal manhole repair device includes a repair base 11 and four support legs 14 located at its lower corners. Each support leg 14 has a walking wheel 35 at its lower end. The repair base 11 has a stabilizing mechanism on its outer side for fixing it in the corresponding position. A crossbeam 25 is provided above the repair base 11. The lower end of the crossbeam 25 is provided with a lifting mechanism for lifting the manhole cover and a cutting mechanism for cutting the ground outside the manhole opening. A lifting mechanism is connected to one side of the crossbeam 25 for driving its up and down movement. The lifting mechanism cooperates with the lifting mechanism to complete the lifting operation of the manhole cover. The lifting mechanism cooperates with the cutting mechanism to feed the cutting mechanism. The upper end of the repair base 11 is also provided with a material loading mechanism for supporting the manhole cover. The manhole cover can be lifted by the lifting mechanism and then temporarily stored by the material loading mechanism. After repair, the manhole cover can be returned to its original position.

[0030] The cutting mechanism 38 includes a mounting base 43 located below the crossbeam 25. A U-shaped frame 48 is provided at the upper end of the mounting base 43. The U-shaped frame 48 is connected to a second motor 27 for driving its rotation. The second motor 27 is located at the upper end of the crossbeam 25. Two cutting blades 45 for cutting the ground are symmetrically arranged on the outer side of the mounting base 43. The two cutting blades 45 are connected to an adjusting member for adjusting the distance between them to adjust the cutting radius. An auxiliary support member for supporting the U-shaped frame 48 is also provided at the lower end of the crossbeam 25. When cutting the road surface outside the wellhead, the cutting radius can be adjusted to adjust the distance between the two cutting blades 45 so as to complete cuts of different diameters.

[0031] The adjusting component includes a double-headed telescopic cylinder 42 located in the middle of the mounting base 43. Each of the two output ends of the double-headed telescopic cylinder 42 is provided with a connecting side rod 49. Each connecting side rod 49 passes through a perforation on the surface of the U-shaped frame 48. The outer end of each connecting side rod 49 is provided with a vertically downward-facing mounting side plate 46. Each mounting side plate 46 has a cutting blade 45 rotatably mounted at its lower end. The extension and retraction of the double-headed telescopic cylinder 42 can adjust the distance between the two mounting side plates 46, thereby providing power for adjusting the cutting diameter. The cutting blade 45 is also connected to a friction transmission component for driving its rotation. The friction transmission component drives the cutting blade 45 to rotate at high speed, thereby providing cutting power.

[0032] The friction transmission component includes a fixed shaft positioned at the center of the cutting blade 45. The end of the fixed shaft is rotatably connected to a mounting side plate 46. A second transmission wheel 53 is mounted on the fixed shaft. A first transmission wheel 39 is rotatably mounted on the upper side of the mounting side plate 46. The first transmission wheel 39 and the second transmission wheel 53 are connected by a transmission belt 40. A transmission shaft 41 is slidably mounted in a through hole in the middle of the first transmission wheel 39. A rotation limiter is provided between the transmission shaft 41 and the first transmission wheel 39 to restrict their relative rotation. The inner end of the transmission shaft 41 is rotatably connected to a bearing seat 51 at the bottom of the mounting base 43. The outer end of the transmission shaft 41 passes through the mounting side plate 46 and is connected to the middle position of the friction wheel 23. The outer side of the friction wheel 23 is provided with… The anti-slip layer includes a friction ring 32 located below the crossbeam 25 where the friction wheel 23 is situated. The friction ring 32 presses against the upper or lower side of the friction wheel 23, generating friction. The friction ring 32 is connected and fixed to the lower end of the crossbeam 25 via the first hanger 24. When the mounting base 43 rotates rapidly, the drive shaft 41 rotates rapidly as well. The friction between the friction wheel 23 and the friction ring 32 at the outer end of the drive shaft 41 drives the friction wheel 23 to rotate rapidly. The friction wheel 23 drives the drive shaft 41 to rotate rapidly. The drive shaft 41 drives the first drive wheel 39 to rotate via a rotation limiter. The first drive wheel 39 drives the second drive wheel 53 to rotate via a drive belt 40. The second drive wheel 53 drives the cutting blade 45 to rotate, thereby providing cutting power.

[0033] Driven by the double-headed telescopic cylinder 42, the connecting side rod 49 drives the mounting side plate 46 to move, and the transmission shaft 41 slides along the center hole of the first transmission wheel 39. This sliding will not interfere with the transmission of power.

[0034] When the lower side of the friction wheel 23 contacts the friction ring 32, the rotation direction of the cutting blade 45 is the same as the revolution direction. When the upper side of the friction wheel 23 contacts the friction ring 32, the rotation direction of the cutting blade 45 is opposite to the revolution direction. The latter is optimal.

[0035] The rotation limiting component includes a rotation limiting groove 52 disposed on the outside of the transmission shaft 41 and a limiting protrusion disposed on the inner wall of the through hole in the middle of the first transmission wheel 39. The limiting protrusion and the rotation limiting groove 52 cooperate with each other to restrict the relative rotation of the first transmission wheel 39 and the transmission shaft 41, but do not affect their relative sliding.

[0036] The auxiliary support includes side shafts symmetrically arranged on both sides of the U-shaped frame 48. Each side shaft is equipped with a rotatable support wheel 47. The lower side of the support wheel 47 is in contact with the upper end face of the auxiliary support ring 44. The upper end of the auxiliary support ring 44 is connected and fixed to the bottom of the crossbeam 25 through the second hanger 50. When the U-shaped frame 48 rotates, the support wheel 47 supports the surface of the auxiliary support ring 44, providing support force and reducing the burden on the second motor 27.

[0037] The hoisting mechanism includes horizontal bars set on both sides of the lower end of the crossbeam 25. Each horizontal bar has a rope box 31 at both ends. The traction end of the rope box 31 is equipped with a hook 37. During hoisting, a rope of the corresponding length is released through the rope box 31, and then the manhole cover is hooked through the hook 37. Then, the manhole cover is lifted in conjunction with the lifting mechanism.

[0038] The material loading mechanism includes a sliding seat 20 slidably disposed on the upper end of the inspection seat 11. A material loading plate 21 that cooperates with the inspection opening 12 is provided on one side of the sliding seat 20. A guide hole with a rectangular cross-section is opened on the lower end face of the sliding seat 20. A guide slider 16 that cooperates with the guide hole is provided on the upper end of the inspection seat 11. A push screw hole is opened at the end of the sliding seat 20. A first screw 15 is fitted in the push screw hole. The first screw 15 is connected to a first motor 13 for driving it to rotate. The first motor 13 drives the first screw 15 to rotate relative to the sliding seat 20. Under the action of the screw, the sliding seat 20 will drive the material loading plate 21 away from the inspection opening 12, thereby avoiding interference with the operation of the cutting mechanism.

[0039] The upper surface of the material carrier plate 21 is provided with a number of material carrier grids 22. The material carrier grids 22 are provided to save materials and facilitate observation of the situation below the equipment.

[0040] The lifting mechanism includes a column 33 mounted on one side of the upper end of the maintenance base 11. A lifting slider 30 is slidably mounted on the column 33. A reinforcing rib 28 for improving mechanical performance is provided between the lifting slider 30 and the first screw 15. A lifting transmission block 36 is provided on one side of the lifting slider 30. The lifting transmission block 36 is provided with a transmission screw hole. A second screw 29 is fitted in the transmission screw hole. The upper end of the second screw 29 is rotatably connected to the side block at the top of the column 33. The lower end of the second screw 29 is connected to the output end of the lifting motor 34 at the upper end of the maintenance base 11. The lifting motor 34 drives the second screw 29 and the lifting transmission block 36 to rotate relative to each other. Under the action of the screw, the lifting transmission block 36 drives the lifting slider 30 to slide up and down along the column 33, thereby providing power for adjusting the height of the component.

[0041] The stabilizing mechanism includes stabilizing mounting bases 18 symmetrically arranged on the outside of the maintenance base 11. Each stabilizing mounting base 18 has a stabilizing push rod 19 installed at its upper end. The output end of the stabilizing push rod 19 is provided with a stabilizing plate 17 for supporting the ground. When it is necessary to fix the position of the equipment, the stabilizing push rod 19 drives the stabilizing plate 17 to move downward, so that the stabilizing plate 17 supports the ground, thereby fixing the equipment in a fixed state.

[0042] The above embodiments disclose a municipal manhole repair device. In actual use, the repair seat 11 is first moved to the top of the manhole to be repaired, and the position of the repair seat 11 is locked by the stabilizing mechanism. Then, the material loading mechanism is controlled to be misaligned with the repair opening 12. Then, the manhole cover is lifted by the hook 37 on the hoisting mechanism and lifted to the top of the repair seat 11. The material loading plate 21 in the material loading mechanism is moved to the position of the repair opening 12, and then the manhole cover is placed on the material loading plate 21.

[0043] When cutting the outside of the wellhead, the distance between the two cutting blades 45 is adjusted by the adjusting component, and then the lifting mechanism drives the crossbeam 25 to descend. When the cutting blade 45 is close to the ground, the second motor 27 drives the U-shaped frame 48 to rotate. The U-shaped frame 48 drives the mounting base 43 to rotate rapidly, thereby driving the cutting blade 45 to revolve rapidly. Under the action of the friction transmission component, the cutting blade 45 will rotate rapidly. The rotating cutting blade 45 cuts the ground under the action of the lifting mechanism. During the cutting process, the entire maintenance base 11 covers the wellhead, eliminating the need for isolation materials and improving the safety of maintenance.

[0044] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A municipal pipe well maintenance device, comprising a maintenance seat (11) and a support leg (14) arranged at the lower end of each of the four corners thereof, and a walking wheel (35) arranged at the lower end of each support leg (14) for walking, a stabilizing mechanism arranged on the outer side of the maintenance seat (11) for fixing the maintenance seat (11) at a corresponding position, and a cross beam (25) arranged above the maintenance seat (11). characterized in that The lower end of the cross beam (25) is provided with a lifting mechanism for lifting the manhole cover and a cutting mechanism (38) for cutting the ground outside the well mouth, one side of the cross beam (25) is connected with a lifting mechanism for driving the cross beam (25) to move up and down, and the upper end of the maintenance seat (11) is further provided with a load carrying mechanism for carrying the manhole cover. The cutting mechanism (38) comprises a mounting seat (43) arranged below the cross beam (25), a U-shaped frame (48) arranged at the upper end of the mounting seat (43), a second motor (27) connected with the U-shaped frame (48) for driving the U-shaped frame (48) to rotate, the second motor (27) being arranged at the upper end of the cross beam (25), two cutting knives (45) arranged symmetrically on the outer side of the mounting seat (43) for cutting the ground, and an adjusting member arranged between the two cutting knives (45) for adjusting the distance between the two cutting knives (45) to adjust the cutting radius, and an auxiliary supporting member arranged at the lower end of the cross beam (25) for supporting the U-shaped frame (48). The adjusting member comprises a double-rod telescopic cylinder (42) arranged at the middle position of the mounting seat (43), two output ends of the double-rod telescopic cylinder (42) are respectively provided with a connecting side rod (49), each connecting side rod (49) passes through a through hole in the surface of the U-shaped frame (48), and an installation side plate (46) is arranged at the outer end of each connecting side rod (49) and arranged vertically downward, each installation side plate (46) is rotatably provided with a cutting knife (45) at the lower end thereof, and the cutting knife (45) is further connected with a friction transmission member for driving the cutting knife (45) to rotate. The friction transmission member comprises a fixed shaft arranged at the center of the cutting knife (45), the fixed shaft is rotatably connected with the installation side plate (46) at the end thereof, a second transmission wheel (53) is arranged on the fixed shaft, a first transmission wheel (39) is rotatably arranged on the upper side of the installation side plate (46), the first transmission wheel (39) and the second transmission wheel (53) are transmissionally connected through a transmission belt (40), a transmission shaft (41) is slidably arranged in a through hole in the middle of the first transmission wheel (39), the transmission shaft (41) and the first transmission wheel (39) are provided with a rotation limiting member for limiting the relative rotation therebetween, the inner end of the transmission shaft (41) is rotatably connected with a bearing seat (51) at the bottom of the mounting seat (43), the outer end of the transmission shaft (41) passes through the installation side plate (46) and is connected with a friction wheel (23) at the middle position thereof, the outer side of the friction wheel (23) is provided with an anti-skid layer, a friction ring (32) is arranged below the cross beam (25) where the friction wheel (23) is arranged, the friction ring (32) is in abutting contact with the upper side or the lower side of the friction wheel (23), and the abutting contact between the friction ring (32) and the friction wheel (23) generates a friction force, and the friction ring (32) is fixedly connected with the lower end of the cross beam (25) through a first lifting rod (24).

2. The municipal pipe well servicing apparatus of claim 1, wherein, The rotation limiting piece comprises a rotation limiting groove (52) arranged outside the transmission shaft (41) and a limiting protrusion arranged in the middle perforated inner wall of the first transmission wheel (39).

3. The municipal pipe well servicing apparatus of claim 1, wherein, The auxiliary support piece comprises side shafts symmetrically arranged on both sides of the U-shaped frame (48), and a support wheel (47) is rotatably arranged on each side shaft, the lower side of the support wheel (47) is in abutting contact with the upper end surface of the auxiliary support ring (44), and the upper end of the auxiliary support ring (44) is connected and fixed with the bottom of the cross beam (25) through the second lifting rod (50).

4. The municipal pipe well servicing apparatus of claim 1, wherein, The hoisting mechanism comprises cross bars arranged on both sides of the lower end of the cross beam (25), and a lifting rope box (31) is arranged at the two ends of each cross bar, and a lifting hook (37) is arranged at the traction end of the lifting rope box (31).

5. The municipal pipe well servicing device of claim 1, wherein, The load carrying mechanism comprises a sliding seat (20) slidingly arranged on the upper end of the maintenance seat (11), one side of the sliding seat (20) is provided with a load carrying plate (21) matched with the maintenance opening (12), the lower end surface of the sliding seat (20) is provided with a guide hole with a rectangular cross section, the upper end of the maintenance seat (11) is provided with a guide sliding block (16) matched with the guide hole, the end of the sliding seat (20) is provided with a pushing screw hole, a first screw rod (15) is matched and arranged in the pushing screw hole, the first screw rod (15) is connected with a first motor (13) for driving the rotation of the first screw rod (15), and the upper end surface of the load carrying plate (21) is distributed with a plurality of load carrying grids (22).

6. The municipal pipe well servicing apparatus of claim 1, wherein, The lifting mechanism comprises a stand (33) arranged on one side of the upper end of the maintenance seat (11), a lifting sliding block (30) is slidingly arranged on the stand (33), a reinforcing rib (28) for improving the mechanical properties is arranged between the lifting sliding block (30) and the first screw rod (15), one side of the lifting sliding block (30) is provided with a lifting transmission block (36), the lifting transmission block (36) is provided with a transmission screw hole, a second screw rod (29) is matched and arranged in the transmission screw hole, the upper end of the second screw rod (29) is rotatably connected with the side block at the top of the stand (33), and the lower end of the second screw rod (29) is connected with the output end of a lifting motor (34) at the upper end of the maintenance seat (11).

7. The municipal pipe well servicing apparatus of claim 1, wherein, The stabilizing mechanism comprises stabilizing mounting seats (18) symmetrically arranged on the outer side of the maintenance seat (11), and a stabilizing pushing rod (19) is arranged at the upper end of each stabilizing mounting seat (18), and the output end of the stabilizing pushing rod (19) is provided with a stabilizing plate (17) for supporting the ground.

8. A method of using the municipal pipe well access device of any of claims 1-7, wherein, The method comprises the following steps: Step one: first, move the maintenance seat (11) above the pipe well to be repaired, lock the position of the maintenance seat (11) through the stabilizing mechanism, then control the load carrying mechanism to be staggered with the maintenance opening (12), then lift the well cover through the lifting hook (37) on the hoisting mechanism, move the load carrying plate (21) in the load carrying mechanism to the position of the maintenance opening (12), and then place the well cover on the load carrying plate (21). Step two: when cutting the outside of the wellhead, adjust the distance between the two cutting knives (45) through the adjusting piece, then lower the cross beam (25) through the lifting mechanism, when the cutting knife (45) is close to the ground, rotate the U-shaped frame (48) through the second motor (27), the U-shaped frame (48) drives the mounting seat (43) to rotate quickly, thereby driving the cutting knife (45) to revolve quickly, under the action of the friction transmission piece, the cutting knife (45) will rotate quickly, and the rotating cutting knife (45) cuts the ground under the action of the lifting mechanism.

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