Mechanical repair through-hole device

Abstract

This application discloses a mechanical repair through-hole device, relating to the field of mechanical through-hole repair, comprising: a housing, a support leg, a breakable component, a first scraper, and a second scraper. The housing is fixedly disposed above the through-hole, the support leg is fixedly disposed on the periphery of the housing, one end of the support leg is fixedly connected to the housing, and the other end of the support leg is fixedly connected to the periphery of the through-hole. The breakable component is slidably disposed inside the housing, the first scraper is slidably disposed inside the breakable component, and the second scraper is rotatably connected to the first scraper. This application has the effect of improving the efficiency of unblocking mechanical through-holes.

Description

Technical Field

[0001] This application relates to the field of mechanical through-hole repair, and in particular to a mechanical through-hole repair device. Background Technology

[0002] During the long-term operation of engineering machinery and equipment, through holes often become blocked due to the flow of liquids of different media. Unblocking through holes is an essential part of maintenance work.

[0003] A common method for unclogging mechanical holes is to manually use a stick to strike the blockage in the hole or to use high-pressure water to flush the hole.

[0004] When using the methods described above to unclog holes, using sticks to strike the hole is not only labor-intensive but also inefficient. Using high-pressure water is similarly inefficient, and the pollutants flowing out with the water pollute the surrounding environment. Utility Model Content

[0005] In order to improve the efficiency of unclogging mechanical through holes, this application provides a mechanical maintenance through hole device.

[0006] This application provides a mechanical maintenance through-hole device, which adopts the following technical solution:

[0007] A mechanical repair through-hole device, comprising:

[0008] The outer casing is fixedly disposed above the through hole;

[0009] The support leg is fixedly disposed on the periphery of the outer shell, one end of the support leg is fixedly connected to the outer shell, and the other end of the support leg is fixedly connected to the periphery of the through hole;

[0010] A crushing component, which is slidably disposed within the outer casing;

[0011] The first scraper is slidably disposed within the broken piece;

[0012] The second scraper is rotatably connected to the first scraper.

[0013] By adopting the above technical solution, when it is necessary to unclog a blocked mechanical through-hole, the support leg is fixedly connected to the side wall of the through-hole, and the position of the support leg connected to the side wall is adjusted so that the crushing component extends into the through-hole and contacts the blockage. During the process of the crushing component extending into the through-hole, if the inner diameter of the through-hole is smaller than the width of the first scraper, pressure is applied to the first scraper, causing it to move towards the crushing rod until the first and second scrapers are tightly fitted against the inner wall of the through-hole. If the diameter of the through-hole is larger than the width of the first scraper, the second scraper is rotated so that it is tightly fitted against the inner wall of the through-hole. After the first and second scrapers are adjusted, the crushing component is rotated. As the crushing component rotates, it moves towards the blockage in the through-hole, and the first and second scrapers rotate synchronously under the action of the crushing component. At this time, the impurities in the through-hole are crushed by the crushing component, and the impurities adhering to the side wall of the through-hole are peeled off by the action of the first and second scrapers, greatly improving the efficiency of unclogging mechanical through-holes.

[0014] Optionally, the crushing component includes:

[0015] A sleeve, wherein a spiral groove is vertically provided on the periphery of the sleeve, and the sleeve is fixedly disposed inside the outer shell;

[0016] A crushing rod, which is slidably disposed within the sleeve;

[0017] The motor is fixedly mounted on the top of the housing, and the output shaft of the motor passes through the housing and the sleeve, and the output shaft of the motor is fixedly connected to the crushing rod;

[0018] A limiting rod, one end of which is fixedly connected to the crushing rod, and the other end of which is slidably disposed within the spiral groove.

[0019] By adopting the above technical solution, after the support leg is fixed to the through hole, the bottom of the crushing rod contacts the blockage. The motor is then started, and its rotation drives the crushing rod to rotate. Following the rotation of the crushing rod, the limiting rod rotates accordingly. Due to the constraint of the spiral groove, the limiting rod can move downwards along the groove. Simultaneously, the downward movement of the limiting rod drives the crushing rod deeper into the through hole. The blockage inside the through hole is gradually broken up by the rotation and propulsion of the crushing rod. The rotation and automatic propulsion of the crushing rod greatly improve the convenience of clearing blockages from the through hole.

[0020] Optionally, the crushing rod is horizontally provided with a sliding groove, and the first scraping element includes:

[0021] A first scraper, one end of which is slidably disposed in the sliding groove, and the other end of which abuts against the inner wall of the through hole;

[0022] A spring, one end of which is fixedly connected to the bottom of the sliding groove, and the other end of which is fixedly connected to the first scraper.

[0023] By adopting the above technical solution, when adjusting the connection position between the support leg and the side wall of the through hole, the crushing rod and the first scraper move simultaneously into the through hole. During the movement of the first scraper into the through hole, if the width of the first scraper is greater than the inner diameter of the through hole, pressure is applied to the first scraper, causing it to move towards the crushing rod until it fits against the inner wall of the through hole. At this point, the spring is compressed, and the spring force ensures that the first scraper remains in close contact with the inner wall of the through hole. After the crushing rod rotates, the first scraper can rotate and peel off the impurities adhering to the inner wall of the through hole, thereby completely removing the blockage in the through hole, which is convenient and quick.

[0024] Optionally, a hydraulic telescopic rod is fixedly mounted on the crushing rod;

[0025] Two guide rods are symmetrically arranged along the axial direction of the crushing rod, and each guide rod is fixedly arranged on the periphery of the crushing rod;

[0026] A guide block is sleeved on the outer periphery of the guide rod, and the guide block is slidably connected to the guide rod;

[0027] A connecting rod, one end of which is fixedly connected to the telescopic end of the hydraulic telescopic rod, and the other end of which is fixedly connected to the guide block;

[0028] The second scraper is rotatably connected to the end of the first scraper away from the spring;

[0029] A push rod, one end of which is fixedly connected to the guide block, and the other end of which is rotatably connected to the second scraper.

[0030] By adopting the above technical solution, when the connection position between the outrigger and the side wall of the through hole is adjusted, the crushing rod and the second scraper move simultaneously into the through hole. If the inner diameter of the through hole is larger than the width of the first scraper, the length of the hydraulic telescopic rod is adjusted, causing the hydraulic telescopic rod to extend towards the blockage. During the extension of the hydraulic telescopic rod, the guide block moves along the guide rod towards the blockage. After the guide block moves, it drives the push rod to rotate, and the push rod rotates, pushing the second scraper to rotate until the second scraper is tightly attached to the inner wall of the through hole, at which point the hydraulic telescopic rod stops extending. After the second scraper is attached to the inner wall of the through hole, the crushing rod begins to rotate, and the second scraper follows the rotation of the crushing rod to peel off the residue from the inner wall of the through hole. The second scraper can effectively remove impurities from through holes of different diameters, effectively improving the versatility of cleaning blockages.

[0031] Optionally, a protective housing is fixedly provided at the end of the crushing rod away from the outer casing, and the protective housing has a vertical opening for the second scraper to rotate.

[0032] By adopting the above technical solution, the protective shell can effectively prevent the debris generated by the crushing head during the crushing of blockages from damaging the components on the crushing rod, and effectively improve the stability of the crushing rod when clearing blockages.

[0033] Optionally, an auxiliary crushing head is fixedly provided at one end of the protective housing near the through hole, and multiple auxiliary crushing heads are arranged at intervals along the protective housing.

[0034] By adopting the above technical solution, the auxiliary crushing head can assist the crushing rod in crushing the blockage, reduce the chance of the crushing rod getting stuck in the blockage during the crushing process, and effectively improve the crushing efficiency.

[0035] Optionally, a suction cup is fixedly provided at one end of the support leg near the through hole.

[0036] By adopting the above technical solution, the suction cup can enhance the adsorption force between the support leg and the side wall of the through hole, preventing the support leg from shifting due to vibration during the crushing process, thus causing the crushing failure. The suction cup improves the stability of the crushing rod during the crushing process.

[0037] Optionally, the end of the second scraper away from the spring is fixedly provided with a scraping slope.

[0038] By adopting the above technical solution, the design of the scraping slope can increase the contact area between the second scraper and the inner wall of the through hole when the second scraper rotates around the first scraper, reduce the possibility of jamming when the second scraper rotates with the inner wall of the through hole, ensure smooth rotation of the second scraper, and improve the stability of the second scraper during rotation.

[0039] Optionally, a drill bit is fixedly installed at the bottom of the breaking rod.

[0040] By adopting the above technical solution, the drill bit configuration can enhance the penetrating power of the crushing rod on the blockage, improve the crushing effect, and increase the crushing efficiency.

[0041] Optionally, buffer pads are fixedly provided at both ends of the spiral groove.

[0042] By adopting the above technical solution, the buffer pad can buffer the impact force generated when the limit rod moves to both ends of the spiral groove, avoid damage to the limit rod or deformation of the spiral groove due to excessive movement speed of the limit rod, and effectively extend the service life of the equipment.

[0043] In summary, this utility model embodiment provides a mechanical repair through-hole device, which includes at least one of the following beneficial technical effects:

[0044] 1. When unclogging a mechanical through-hole, fix the support leg to the side wall of the through-hole and adjust the position of the support leg to the side wall so that the crushing component extends into the through-hole and contacts the blockage. During the process of the crushing component extending into the through-hole, if the inner diameter of the through-hole is smaller than the width of the first scraper, apply pressure to the first scraper, causing it to move towards the crushing rod until the first and second scrapers are tightly fitted against the inner wall of the through-hole. If the diameter of the through-hole is larger than the width of the first scraper, rotate the second scraper to make it tightly fitted against the inner wall of the through-hole. After the first and second scrapers are adjusted, rotate the crushing component. As the crushing component rotates, it moves towards the blockage in the through-hole, and the first and second scrapers rotate synchronously under the action of the crushing component. At this time, the impurities in the through-hole are crushed by the crushing component, and the impurities adhering to the side wall of the through-hole are peeled off by the action of the first and second scrapers, greatly improving the efficiency of unclogging the mechanical through-hole.

[0045] 2. After the support legs are fixed to the through hole, the bottom of the crushing rod contacts the blockage. The motor is started, and its rotation drives the crushing rod to rotate. Following the rotation of the crushing rod, the limiting rod rotates accordingly. Due to the constraint of the spiral groove, the limiting rod moves downwards along the groove. Simultaneously, the downward movement of the limiting rod drives the crushing rod deeper into the through hole. The blockage inside the through hole is gradually broken up by the rotation and propulsion of the crushing rod. The rotation and automatic propulsion of the crushing rod greatly improve the ease of clearing blockages from the through hole.

[0046] 3. When adjusting the connection position between the outrigger and the sidewall of the through hole, the crushing rod and the second scraper move simultaneously into the through hole. If the inner diameter of the through hole is larger than the width of the first scraper, adjust the length of the hydraulic telescopic rod so that it extends towards the blockage. During the extension of the hydraulic telescopic rod, it drives the guide block to move along the guide rod towards the blockage. After the guide block moves, it drives the push rod to rotate, and the push rod rotates, pushing the second scraper to rotate until the second scraper is tightly attached to the inner wall of the through hole. Then, the hydraulic telescopic rod stops extending. After the second scraper is attached to the inner wall of the through hole, the crushing rod starts to rotate, and the second scraper follows the rotation of the crushing rod to peel off the residue from the inner wall of the through hole. The second scraper can effectively remove impurities from through holes of different diameters, effectively improving the versatility of cleaning blockages. Attached Figure Description

[0047] Figure 1 A schematic diagram of a mechanical repair through-hole device provided in an embodiment of this utility model;

[0048] Figure 2 A schematic diagram of the structure of the protective shell in a mechanical repair through-hole device provided in this embodiment of the utility model;

[0049] Figure 3A schematic diagram of the structure of the second scraping component in a mechanical repair through-hole device provided in an embodiment of this utility model;

[0050] Figure 4 A schematic diagram of the structure of a buffer pad in a mechanical repair through-hole device provided in this embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the first scraping component in a mechanical repair through-hole device provided in an embodiment of the present utility model.

[0052] Explanation of the markings in the image:

[0053] 1. Outer shell; 11. Support leg; 12. Suction cup; 2. Crushing component; 21. Motor; 22. Crushing rod; 23. Drill bit; 24. Sleeve; 25. Spiral groove; 26. Limiting rod; 3. First scraper; 31. Sliding groove; 32. Spring; 33. First scraper; 4. Second scraper; 41. Hydraulic telescopic rod; 42. Guide rod; 43. Guide block; 44. Connecting rod; 45. Push rod; 46. Second scraper; 5. Buffer pad; 6. Protective shell; 61. Auxiliary crushing head; 7. Mechanical through hole; 71. Blockage. Detailed Implementation

[0054] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0055] Combination Figure 1 , Figure 2 and Figure 3 This application discloses a mechanical repair through-hole device, including a housing 1, a support leg 11, a crushing component 2, a first scraper 3, and a second scraper 4. The housing 1 is fixedly disposed above the through-hole. The support leg 11 is fixedly disposed around the periphery of the housing 1, with one end of the support leg 1 fixedly connected to the housing 1 and the other end of the support leg 11 fixedly connected to the periphery of the through-hole. The crushing component 2 is slidably disposed inside the housing 1. The first scraper 3 is slidably disposed inside the crushing component 2. The second scraper 4 is rotatably connected to the first scraper 3.

[0056] In this embodiment, the outer shell 1 is a cylindrical structure, and the support leg 11 is a rectangular rod. The support leg 11 can be fixedly connected to the outer shell 1 by integral molding or by welding, and no specific limitation is made in this embodiment. The crushing component 2 is a cylindrical rod, and the first scraping component 3 and the second scraping component 4 are rectangular plates.

[0057] In practical use, the support leg 11 is fixedly connected to the side wall of the through hole, allowing part of the crushing component 2 to extend into the through hole, and the bottom of the crushing component 2 to contact the blockage 71 inside the through hole. As the crushing component 2 extends into the through hole, the first scraper 3 and the second scraper 4 move along with it. If the inner diameter of the through hole is smaller than the width of the first scraper 3, pressure is applied to the first scraper 3, causing it to move the second scraper 4 towards the crushing component 2, until the first scraper 3 and the second scraper 4 are tightly fitted against the inner wall of the through hole, at which point pressure is stopped. If the inner diameter of the through hole is larger than the width of the first scraper 3, the second scraper 4 is rotated until it is tightly fitted against the inner wall of the through hole. After positioning is completed, the crusher 2 is rotated. After the crusher 2 starts to rotate, it drives the first scraper 3 and the second scraper 4 to rotate synchronously. After the crusher 2 rotates, it gradually moves towards the bottom of the through hole, so that the blockage 71 in the through hole is crushed by the crusher 2. The blockage 71 attached to the inner wall of the through hole is scraped off by the first scraper 3 and the second scraper 4, thereby achieving unblocking and cleaning of the through hole.

[0058] Combination Figure 2 , Figure 3 and Figure 5In a specific embodiment, a spiral groove 25 is vertically arranged on the periphery of the sleeve 24. The crushing component 2 includes the sleeve 24, the crushing rod 22, the motor 21, and the limiting rod 26. The sleeve 24 is fixedly arranged inside the outer shell 1, the crushing rod 22 is slidably arranged inside the sleeve 24, the motor 21 is fixedly arranged on the top of the outer shell 1, the output shaft of the motor 21 passes through the outer shell 1 and the sleeve 24, and the output shaft of the motor 21 is fixedly connected to the crushing rod 22. One end of the limiting rod 26 is fixedly connected to the crushing rod 22, and the other end of the limiting rod 26 is slidably arranged in the spiral groove 25. The crushing rod 22 is horizontally arranged with a sliding groove 31. The first scraping component 3 includes a first scraper 33 and a spring 32. One end of the first scraper 33 is slidably arranged in the sliding groove 31, and the other end of the first scraper 33 abuts against the inner wall of the through hole. One end of the spring 32 is fixedly connected to the bottom of the sliding groove 31, and the other end of the spring 32 is fixedly connected to the first scraper 33. The second scraping component 4 includes a hydraulic telescopic rod 41, a guide rod 42, a guide block 43, a connecting rod 44, a second scraper 46, and a pushing rod 45. The hydraulic telescopic rod 41 is fixedly mounted on the crushing rod 22. Two guide rods 42 are symmetrically arranged along the axial direction of the crushing rod 22, each guide rod 42 being fixedly mounted on the periphery of the crushing rod 22. The guide block 43 is sleeved on the outer periphery of the guide rod 42 and is slidably connected to the guide rod 42. One end of the connecting rod 44 is fixedly connected to the telescopic end of the hydraulic telescopic rod 41, and the other end of the connecting rod 44 is fixedly connected to the guide block 43. The second scraper 46 is rotatably connected to the end of the first scraper 33 away from the spring 32. One end of the pushing rod 45 is fixedly connected to the guide block 43, and the other end of the pushing rod 45 is rotatably connected to the second scraper 46. A suction cup 12 is fixedly mounted on the end of the support leg 11 near the through hole. A scraping slope is fixedly mounted on the end of the second scraper 46 away from the spring 32. A drill bit 23 is fixedly mounted on the bottom of the crushing rod 22.

[0059] In this embodiment, the sleeve 24 is a cylindrical structure and is integrally formed and fixedly connected to the outer shell 1. The crushing rod 22 is a cylindrical rod, and its length is greater than that of the outer shell 1. The motor 21 is fixedly connected to the outer shell 1 by bolts. The limiting rod 26 is a cylindrical rod and can be integrally formed and fixedly connected to the crushing rod 22, or it can be fixedly connected by welding; this embodiment does not specify a particular method. The spiral groove 25 penetrates the sleeve 24, and its specifications allow the limiting rod 26 to slide. The sliding groove 31 is a rectangular groove, the first scraper 33 is a rectangular plate, and the spring 32 is integrally formed and fixedly connected to the sliding groove 31 and the first scraper 33; the specifications of the sliding groove 31 allow the first scraper 33 to slide. The hydraulic telescopic rod 41 is fixedly connected to the crushing rod 22 by bolts, and the guide rod 42 is a cylindrical rod and can be integrally formed and fixedly connected to the crushing rod 22, or it can be fixedly connected by welding; this embodiment does not specify a particular method. The guide block 43 is rectangular, and the connecting rod 44 is cylindrical. The connecting rod 44 is integrally formed and fixedly connected to the guide block 43 and the hydraulic telescopic rod 41. The second scraper 46 is rectangular, and the push rod 45 is rectangular telescopic rod. The push rod 45 is integrally formed and fixedly connected to the guide block 43. The guide slope is a smooth inclined surface. The suction cup 12 is integrally formed and fixedly connected to the support leg 11, and the drill bit 23 is welded to the breaking rod 22.

[0060] In practical use, the position of the crushing rod 22 is adjusted by adjusting the position of the suction cup 12 adsorbing the through hole, ensuring that the drill bit 23 contacts the blockage 71 in the through hole. During the adjustment of the position of the crushing rod 22, the first scraper 33 and the second scraper 46 move into the through hole following the crushing rod 22. During the movement of the first scraper 33 and the second scraper 46, if the inner diameter of the through hole is smaller than the width of the first scraper 33, pressure is applied to the first scraper 33, causing the first scraper 33 and the second scraper 46 to move towards the crushing rod 22 until the first scraper 33, the second scraper 46, and the inner wall of the through hole are tightly fitted together. If the inner diameter of the through hole is larger than the width of the first scraper 33, the hydraulic telescopic rod 41 extends, causing its telescopic end to move towards the through hole. This movement of the hydraulic telescopic rod 41 drives the connecting rod 44 to move, which in turn drives the guide block 43 to move along the guide rod 42 towards the through hole. The guide block 43 then drives the push rod 45 to extend, which in turn drives the second scraper 46 to rotate until the inner wall of the through hole of the second scraper 46 is tightly fitted. At this point, the hydraulic telescopic rod 41 stops extending. During the rotation of the second scraper 46, the guide slope prevents the second scraper 46 from jamming against the inner wall of the through hole.

[0061] After positioning is completed, motor 21 is started. Motor 21 rotates, driving the crushing rod 22 to rotate. The crushing rod 22 then rotates, causing the limiting rod 26 to rotate synchronously. Due to the spiral groove 25, the limiting rod 26 slides downwards along the spiral groove 25. The movement of the limiting rod 26 then drives the crushing rod 22 to move downwards synchronously, thereby crushing the blockage 71. During the crushing process, because the first scraper 33 and the second scraper 46 are in close contact with the inner wall of the through hole, and the rotation of the crushing rod 22 drives the first scraper 33 and the second scraper 46 to rotate, the blockage 71 adhering to the side wall of the through hole is peeled off by the rotation of the first scraper 33 and the second scraper 46, thus cleaning the inner wall of the through hole.

[0062] Combination Figure 2 and Figure 4 In a specific embodiment, a protective housing 6 is fixedly installed at the end of the crushing rod 22 away from the outer casing 1. The protective housing 6 has a vertically arranged opening for the second scraper 46 to rotate. An auxiliary crushing head 61 is fixedly installed at the end of the protective housing 6 near the through hole, and multiple auxiliary crushing heads 61 are arranged at intervals along the protective housing 6. Buffer pads 5 are fixedly installed at both ends of the spiral groove 25.

[0063] In this embodiment, the protective housing 6 is a cylindrical structure, and is integrally formed and fixedly connected to the crushing rod 22. The auxiliary crushing head 61 can be integrally formed and fixedly connected to the protective housing 6, or it can be fixedly connected by welding; no specific limitation is made in this embodiment. The buffer pad 5 is integrally formed and fixedly connected to the spiral groove 25.

[0064] In practical use, the protective housing 6 effectively prevents flying debris from damaging the components on the crushing rod 22 during the crushing process. Meanwhile, the auxiliary crushing head 61 prevents the crushing rod 22 from getting stuck in the blockage 71 during crushing, thus affecting the crushing effect. The buffer pad 5 prevents the limit rod 26 from moving too fast, which could cause excessive impact when it contacts the spiral groove 25, thus damaging the limit rod 26.

[0065] The principle of this embodiment is as follows: the support leg 11 is fixedly connected to the side wall of the through hole, so that part of the crushing component 2 extends into the through hole, and the bottom of the crushing component 2 contacts the blockage 71 in the through hole. During the process of the crushing component 2 extending into the through hole, the first scraper 3 and the second scraper 4 move into the through hole along with the crushing component 2. If the inner diameter of the through hole is smaller than the diameter of the first scraper 3, pressure is applied to the first scraper 3, causing it to drive the second scraper 4 towards the crushing component 2, until the first scraper 3 and the second scraper 4 are tightly fitted against the inner wall of the through hole, at which point pressure is stopped. If the inner diameter of the through hole is larger than the diameter of the first scraper 3, the second scraper 4 is rotated until it is tightly fitted against the inner wall of the through hole. After positioning is completed, the crusher 2 is rotated. After the crusher 2 starts to rotate, it drives the first scraper 3 and the second scraper 4 to rotate synchronously. After the crusher 2 rotates, it gradually moves towards the bottom of the through hole, so that the blockage 71 in the through hole is crushed by the crusher 2. The blockage 71 attached to the inner wall of the through hole is scraped off by the first scraper 3 and the second scraper 4, thereby achieving unblocking and cleaning of the through hole.

[0066] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A mechanical repair through-hole device, characterized in that, include: The outer casing (1) is fixedly disposed above the through hole; Support leg (11), the support leg (11) is fixedly disposed on the periphery of the outer shell (1), one end of the support leg (11) is fixedly connected to the outer shell (1), and the other end of the support leg (11) is fixedly connected to the periphery of the through hole; The broken component (2) is slidably disposed within the outer shell (1); The first scraper (3) is slidably disposed within the crusher (2); The second scraper (4) is rotatably connected to the first scraper (3).

2. The mechanical maintenance through-hole device according to claim 1, characterized in that, The broken component (2) includes: Sleeve (24), the sleeve (24) is provided with a vertical spiral groove (25) on its periphery, the sleeve (24) is fixedly disposed inside the outer shell (1); A crushing rod (22) is slidably disposed within the sleeve (24); The motor (21) is fixedly mounted on the top of the housing (1), and the output shaft of the motor (21) passes through the housing (1) and the sleeve (24), and the output shaft of the motor (21) is fixedly connected to the crushing rod (22); A limiting rod, one end of which is fixedly connected to the breaking rod (22), and the other end of which is slidably disposed in the spiral groove (25).

3. The mechanical maintenance through-hole device according to claim 2, characterized in that, The crushing rod (22) is horizontally provided with a sliding groove (31), and the first scraping element (3) includes: The first scraper (33) has one end slidably disposed in the sliding groove (31), and the other end of the first scraper (33) abuts against the inner wall of the through hole; A spring (32) is fixedly connected at one end to the bottom of the sliding groove (31), and at the other end to the first scraper (33).

4. The mechanical maintenance through-hole device according to claim 3, characterized in that, The second scraper (4) includes: A hydraulic telescopic rod (41) is fixedly mounted on the breaking rod (22); Guide rod (42), two guide rods (42) are symmetrically arranged along the axial direction of the crushing rod (22), and each guide rod (42) is fixedly arranged on the periphery of the crushing rod (22); Guide block (43), the guide block (43) is sleeved on the outer periphery of the guide rod (42), and the guide block (43) is slidably connected to the guide rod (42); A connecting rod (44) is fixedly connected at one end to the telescopic end of the hydraulic telescopic rod (41), and at the other end to the guide block (43). The second scraper (46) is rotatably connected to the end of the first scraper (33) away from the spring (32); A push rod (45) is fixedly connected at one end to the guide block (43), and the other end of the push rod (45) is rotatably connected to the second scraper (46).

5. A mechanical maintenance through-hole device according to claim 2, characterized in that, The end of the crushing rod (22) away from the outer shell (1) is fixedly provided with a protective shell (6), and the protective shell (6) is vertically provided with an opening for the second scraper (46) to rotate.

6. A mechanical maintenance through-hole device according to claim 5, characterized in that, An auxiliary crushing head (61) is fixedly provided at one end of the protective shell (6) near the through hole, and multiple auxiliary crushing heads (61) are provided at intervals along the protective shell (6).

7. A mechanical maintenance through-hole device according to claim 2, characterized in that, A suction cup (12) is fixedly installed at one end of the support leg (11) near the through hole.

8. A mechanical maintenance through-hole device according to claim 4, characterized in that, The second scraper (46) has a scraping slope fixedly provided at the end away from the spring (32).

9. A mechanical maintenance through-hole device according to claim 4, characterized in that, A drill bit (23) is fixedly installed at the bottom of the breaking rod (22).

10. A mechanical maintenance through-hole device according to claim 2, characterized in that, The spiral groove (25) is fixedly provided with buffer pads (5) at both ends.

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