A road manhole cover area damage repairing device

Abstract

The application belongs to the technical field of road facilities, and discloses a road inspection well lid area damage repairing device, which comprises a placing frame, a pulling block is fixedly installed at the top of the placing frame, push assemblies are movably connected to the two sides in the placing frame, a circular ring toothed plate is fixedly connected to the inner ends of the two push assemblies, the circular ring toothed plate is movably connected with the inner wall of the placing frame, first gears are movably connected to the two sides of the inner wall of the circular ring toothed plate, and second gears are movably connected to the ends, away from the circular ring toothed plate, of the two first gears. The cooperation of the push assembly and the placing frame and other structures reduces the compactness when the inspection well lid contacts the road surface, the first push rod and the second push rod are held, the bottom end of the first connecting block and the second connecting plate moves, and the dust inside the gap between the inspection well lid and the edge of the road surface is cleaned, thereby facilitating the subsequent taking of the inspection well lid.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of road facilities, and particularly relates to a device for repairing damage in a road inspection well cover area. BACKGROUND

[0002] In urban construction, there are many underground pipelines, such as sewer, underground gas pipeline, water pipeline, power pipeline, communication pipeline, and national defense pipeline. Every section of these pipelines needs an outlet to the ground, and the section from the pipeline to the ground is called an inspection well. The inspection well opening is usually flush with the ground, so a cover is needed to cover the inspection well, which is called an inspection well cover. The inspection well cover is usually made of reinforced concrete, metal, or reinforced plastic, and the shape is mainly round or square.

[0003] At present, the inspection well cover is set on the road surface, and the top of the inspection well cover will be damaged after being pressed by pedestrians and vehicles for a long time. In order to ensure the normal use of the inspection well cover, a related device for repairing damage is needed to take the inspection well cover from the road surface and repair it. However, the existing device for repairing damage in the inspection well cover area still has drawbacks in the process of taking the inspection well cover.

[0004] In the prior art, the inspection well cover is first taken by manually inserting fingers through the hole in the top of the inspection well cover and placing them at the bottom of the inspection well cover, and then the operator pulls upward to take the inspection well cover. In actual operation, since the inspection well cover is hard, simply pulling upward with the fingers can cause damage to the surface skin of the fingers and pose a safety hazard. In addition, the operator usually uses the principle of a lever to insert a stick through the hole in the inspection well cover, press one end of the stick, and make the other end of the inspection well cover shake. When the stick is used to shake around, it is then pulled upward to take the inspection well cover. In actual operation, only using the stick in combination with the lever requires the operator to press different positions of the inspection well cover, which greatly increases the labor intensity of the operator and is not easy to implement. SUMMARY

[0005] To solve the problems in the background art, the present application provides a device for repairing damage in a road inspection well cover area, which has the advantages of fast and stable taking. By cooperating the pushing assembly and the placing frame, the compactness of the inspection well cover when it contacts the road surface is reduced. By cooperating the positioning assembly and the abutting assembly, the convenience of taking the inspection well cover that needs to be repaired is improved. By cooperating the first gear and the movable assembly, the efficiency and stability of taking the inspection well cover are improved.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A road inspection well lid area damage repairing device, comprising a placing frame, a pulling block is fixedly installed on the top of the placing frame, two push assemblies are movably connected on the both sides in the placing frame, a circular ring toothed plate is fixedly connected to the inner ends of the two push assemblies, the circular ring toothed plate is movably connected with the inner wall of the placing frame, first gears are movably connected on the both sides of the inner wall of the circular ring toothed plate, second gears are movably connected on the ends of the two first gears away from the circular ring toothed plate, the first gears and the second gears are fixedly connected with the placing frame through first fixed plates, and the first gears and the second gears are bearing-connected with the first fixed plates, the inner walls of the two second gears are threadedly sleeved with movable assemblies, the lower ends of the two movable assemblies are movably clamped in the placing frame, positioning assemblies are movably connected in the interiors of the two movable assemblies, four recesses are annularly and equiangularly formed on the outer side walls of the lower ends of the two movable assemblies, and abutting assemblies are movably connected in the interiors of the four recesses.

[0007] In the above technical scheme, preferably, a fixed assembly is fixedly installed on the middle end of the top of the pulling block, a second spring telescopic cylinder is fixedly installed on the side of the top of the pulling block away from the fixed assembly, the top of the second spring telescopic cylinder is fixedly connected with the positioning assembly, and pull plates are fixedly installed on the both ends of the outer side wall of the upper end of the placing frame.

[0008] In the above technical scheme, preferably, the push assembly comprises a first push rod and a second push rod, the outer side walls of the first push rod and the second push rod are movably connected with the inner wall of the placing frame, the bottom surfaces of the inner ends of the first push rod and the second push rod are fixedly connected with a first connecting block and a second connecting plate respectively, arc-shaped spring telescopic cylinders are fixedly installed on the upper and lower ends of the side walls of the first connecting block and the second connecting plate, the sides of the arc-shaped spring telescopic cylinders away from the first connecting block and the second connecting plate are fixedly connected with the placing frame, and the bottoms of the first connecting block and the second connecting plate are pointed.

[0009] In the above technical scheme, preferably, the movable assembly comprises a movable tube, the number of the movable tubes is two, the outer side walls of the two movable tubes are threadedly sleeved with the inner walls of the second gears, the outer side walls of the lower ends of the two movable tubes are fixedly sleeved with limiting rods, and the both ends of the limiting rods are movably clamped in the placing frame.

[0010] In the above technical scheme, preferably, the positioning assembly comprises an extrusion column, the number of the extrusion columns is two, the two extrusion columns are movably connected in the interiors of the movable tubes, the tops of the two extrusion columns extend above the pulling block and are fixedly installed with positioning rods, and the outer side walls of the bottoms of the extrusion columns are inclined.

[0011] In the technical scheme, preferably, the resisting assembly comprises resisting plates, four of the resisting plates are movably sleeved in the recess in a ring shape and at equal angles, two ends of the inner side wall of each of the resisting plates are fixedly provided with first spring telescopic cylinders, one end of each of the first spring telescopic cylinders away from the resisting plate is fixedly connected with the moving assembly, and the top of each of the resisting plates is resistively connected with the extruding column.

[0012] In the technical scheme, preferably, the fixed assembly comprises a fixed rod, the fixed rod is fixedly connected with the top of the pulling block, a second fixed plate is movably sleeved on the outer side wall of the upper end of the fixed rod, and a clamping block is movably sleeved in the inner side of one end of the second fixed plate away from the fixed rod.

[0013] In the technical scheme, preferably, the top of each of the four resisting plates is inclined.

[0014] In the technical scheme, preferably, a slot hole is formed in the top of the pulling block away from the positioning assembly, and the inner diameter of the slot hole is the same as the outer diameter of the bottom of the clamping block.

[0015] In the technical scheme, preferably, threads are formed on the outer surface of each of the two movable pipes and the inner side wall of the second gear, and the threads of the two are matched.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] Through cooperation of the pushing assembly and the placing frame, the compactness of the inspection well cover when contacting the road surface is reduced, the first pushing rod and the second pushing rod are held and rotated, the bottom of the first pushing rod and the second pushing rod moves the first connecting block and the second connecting plate respectively, the bottom of the first connecting block and the second connecting plate cleans the dust in the gap between the inspection well cover and the road edge, and the subsequent taking of the inspection well cover is facilitated.

[0018] Through cooperation of the positioning assembly and the resisting assembly, the convenience of taking the inspection well cover to be repaired is improved, when the extruding column moves downward to extrude the top of the resisting plate, the outer end of the four resisting plates expands outward from the inside of the movable pipe through the recess, the bottom of the hole in the top of the inspection well cover is blocked due to the outward expansion of the resisting plate, the top of the four resisting plates contacts the bottom of the inspection well cover, the pulling block is pulled upward to realize the taking operation of the inspection well cover, the operation is convenient, and the labor intensity of the operator is reduced.

[0019] This invention improves the efficiency and stability of manhole cover retrieval by incorporating a first gear and movable components. As the entire pushing component moves, the circular toothed plate rotates inside the upper part of the placement frame. This rotation, via the first and second gears, drives the movable component to move up and down within the placement frame. As the movable tubes move up and down, their lower ends gradually pass through the holes at the top of the manhole cover to the bottom, facilitating subsequent retrieval and reducing the number of steps required for operators, thus increasing efficiency. Furthermore, the use of slots at the top of the manhole cover for retrieval significantly enhances overall stability, facilitating subsequent repair work on damaged manhole covers. Attached Figure Description

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

[0021] Figure 2 This is a top view of the structure of the present invention;

[0022] Figure 3 This is a bottom view schematic diagram showing the structural relationship between the active component and the contact component of the present invention;

[0023] Figure 4 This is a schematic diagram of the side cross-sectional structure of the present invention;

[0024] Figure 5 This is a schematic diagram showing the structural fit between the first gear and the second gear of the present invention;

[0025] Figure 6 This is a schematic diagram showing the structural fit between the push component and the annular toothed plate of the present invention;

[0026] Figure 7 This is a schematic diagram showing the structural fit between the active component and the positioning component of the present invention;

[0027] Figure 8 This is a schematic diagram showing the structural fit between the groove and the contact component of the present invention;

[0028] Figure 9 This is a schematic diagram showing the structural fit between the fixing component and the positioning component of the present invention.

[0029] In the figure: 1, placing frame; 2, pulling block; 3, pushing assembly; 31, first pushing rod; 32, first connecting block; 33, second pushing rod; 34, second connecting plate; 35, arc spring telescopic cylinder; 4, circular ring toothed plate; 5, first gear; 6, second gear; 7, movable assembly; 71, movable pipe; 72, limiting rod; 8, positioning assembly; 81, extruding column; 82, positioning rod; 9, recess; 10, abutting assembly; 101, abutting plate; 102, first spring telescopic cylinder; 11, fixing assembly; 111, fixing rod; 112, second fixing plate; 113, clamping block; 12, second spring telescopic cylinder; 13, pulling plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] As Figures 1 to 9As shown, the present application provides a kind of road inspection well lid area broken patching device, including placing frame 1, the top of placing frame 1 is fixedly installed pull block 2, both sides in placing frame 1 are movably connected with pusher assembly 3, the inner end of two pusher assemblies 3 is fixedly connected with annular toothed plate 4, annular toothed plate 4 is movably connected with the inner wall of placing frame 1, both sides of the inner wall of annular toothed plate 4 are engagedly connected with first gear 5, the end of two first gears 5 away from annular toothed plate 4 is engagedly connected with second gear 6, and first gear 5 and second gear 6 are fixedly connected with placing frame 1 by first fixed plate, and first gear 5 and second gear 6 are connected with first fixed plate bearing, and the inner wall of two second gears 6 is threadedly sleeved with movable assembly 7, the lower end of movable assembly 7 is movably clamped in the inside of placing frame 1, and the inside of two movable assemblies 7 is movably connected with positioning assembly 8, and the outer side wall of the lower end of two movable assemblies 7 annularly equal-angle four recesses 9 are formed, and four recesses 9 are movably connected with abutting assembly 10, and abutting assembly 10 is arranged at the lower end in the inner cavity of movable assembly 7, using the above scheme: when the device is placed on the top of the inspection well lid by the above structure design, the bottom of two pusher assemblies 3 is treated to the edge of the inspection well lid by rotating, and dust is accumulated, which affects the subsequent taking of the inspection well lid, with the rotation of pusher assembly 3, movable assembly 7 is driven by first gear 5 and second gear 6 to pass through two holes in the top of the inspection well lid and then enter the inside of the inspection well lid, then press positioning assembly 8 downward to extrude abutting assembly 10 so that abutting assembly 10 blocks the bottom of the inspection well lid, then the worker pulls pull block 2 upward to drive the inspection well lid to move upward and realize the separation from the ground, so as to realize the repair of the broken area, convenient operation.

[0032] As Figure 2 , Figure 5 , Figure 6 and Figure 9As shown, the middle end of the top of the pulling block 2 is fixedly provided with a fixing assembly 11, and the side of the top of the pulling block 2 away from the fixing assembly 11 is fixedly provided with a second spring telescopic cylinder 12, the top of the second spring telescopic cylinder 12 is fixedly connected with the positioning assembly 8, and the outer side wall of the upper end of the placing frame 1 is fixedly provided with a pulling plate 13 at both ends, the pushing assembly 3 comprises a first pushing rod 31 and a second pushing rod 33, the outer side wall of the first pushing rod 31 and the second pushing rod 33 is movably connected with the inner wall of the placing frame 1, the bottom surface of the inner end of the first pushing rod 31 and the second pushing rod 33 is fixedly connected with a first connecting block 32 and a second connecting plate 34 respectively, the upper and lower ends of one side wall of the first connecting block 32 and the second connecting plate 34 are fixedly provided with an arc spring telescopic cylinder 35, and the side of the arc spring telescopic cylinder 35 away from the first connecting block 32 and the second connecting plate 34 is fixedly connected with the placing frame 1, the bottom of the first connecting block 32 and the second connecting plate 34 is pointed, and the above scheme has the following beneficial effects: through the design of the first pushing rod 31 to the arc spring telescopic cylinder 35, when the first pushing rod 31 and the second pushing rod 33 are held and rotated, the first pushing rod 31 and the second pushing rod 33 will drive the first connecting block 32 and the second connecting plate 34 to move in the placing frame 1, at the same time, the arc spring telescopic cylinder 35 will also be activated when it is extruded by the first connecting block 32 and the second connecting plate 34, and through the design of the arc spring telescopic cylinder 35, the stability of the first pushing rod 31, the first connecting block 32, the second pushing rod 33 and the second connecting plate 34 during movement will be improved; through the design of the fixing assembly 11, the second spring telescopic cylinder 12 and the pulling plate 13, the fixing assembly 11 is rotated to pass out of the inner top of the positioning assembly 8, at this time, the fixing assembly 11 is pulled upwards, thereby realizing the limiting and fixing of the positioning assembly 8, and through the design of the second spring telescopic cylinder 12, the stability of the positioning assembly 8 during movement is improved, and the pulling plate 13 will be beneficial to the holding of the device by the operator, thereby saving the labor intensity of the operator.

[0033] As Figure 7As shown, the movable assembly 7 comprises two movable pipes 71, the outer side walls of the two movable pipes 71 are threadedly sleeved with the inner wall of the second gear 6, the outer side walls of the lower ends of the two movable pipes 71 are fixedly sleeved with limiting rods 72, the two ends of the limiting rods 72 are movably clamped in the interior of the placing frame 1, the positioning assembly 8 comprises two extrusion columns 81, the two extrusion columns 81 are movably connected in the interior of the movable pipe 71, the top portions of the two extrusion columns 81 extend above the pulling block 2 and are fixedly installed with positioning rods 82, the outer side wall of the bottom portion of the extrusion column 81 is in a beveled shape, the outer surfaces of the two movable pipes 71 and the inner side wall of the second gear 6 are both provided with threads, and the thread patterns of the two are compatible, and the above scheme has the following beneficial effects: through the cooperation design of the threads, when the second gear 6 rotates, the movable pipe 71 will move downward, thereby facilitating the subsequent taking operation of the inspection well cover; through the design of the extrusion column 81 and the positioning rod 82, pressing the positioning rod 82 downward will drive the extrusion column 81 to move downward in the interior of the movable pipe 71, and the downward movement of the extrusion column 81 will extrude the subsequent resisting assembly 10, so that the resisting assembly 10 blocks the bottom of the inspection well cover, thereby facilitating the subsequent cooperative operation; through the design of the movable pipe 71 to the limiting rod 72, when the second gear 6 rotates, it will drive the movable pipe 71 to move up and down in the interior of the placing frame 1, and as the movable pipe 71 continuously moves downward, it will enter the bottom of the inspection well cover, thereby facilitating the subsequent taking of the inspection well cover, and at the same time, through the cooperation of the limiting rod 72, it will limit the movement of the movable pipe 71.

[0034] As shown in the figure, Figure 8 The resisting assembly 10 comprises four resisting plates 101, the four resisting plates 101 are annularly and equiangularly movably sleeved in the interior of the groove 9, the two ends of the inner side wall of the resisting plate 101 are fixedly installed with first spring telescopic cylinders 102, the end of the first spring telescopic cylinder 102 away from the resisting plate 101 is fixedly connected with the movable assembly 7, the top portion of the resisting plate 101 is resistively connected with the extrusion column 81, the side wall of the top portion of the four resisting plates 101 close to the extrusion column 81 is in a beveled shape, and the above scheme has the following beneficial effects: through the design of the beveled side of the top portion of the resisting plate 101, the extrusion of the extrusion column 81 on the resisting plate 101 is more smooth; through the design of the resisting plate 101 and the first spring telescopic cylinder 102, when the extrusion column 81 moves downward to extrude the top portion of the resisting plate 101, at this time, the outer ends of the four resisting plates 101 will expand outward from the interior of the movable pipe 71 through the groove 9, and as the resisting plate 101 expands outward, it will block the bottom of the hole in the top portion of the inspection well cover, thereby facilitating the subsequent holding, and through the design of the first spring telescopic cylinder 102, it will limit the movement of the resisting plate 101 to a certain extent, and also has the effect of resetting the movement of the resisting plate 101.

[0035] As shown in the figure, Figure 9As shown, the fixing assembly 11 comprises a fixing rod 111 fixedly connected with the top of the pulling block 2, a second fixing plate 112 movably sleeved with the outer side wall of the upper end of the fixing rod 111, and a clamping block 113 movably sleeved with the inner part of the end of the second fixing plate 112 away from the fixing rod 111; a slot hole is formed in the top of the pulling block 2 away from one side of the positioning assembly 8, and the inner diameter of the slot hole is the same as the outer diameter of the bottom of the clamping block 113.

[0036] The working principle and use process of the present application are as follows:

[0037] In use, first, the operator places the device directly above the inspection well cover, holds the first pushing rod 31 and the second pushing rod 33 with both hands, and rotates them; with the rotation of the first pushing rod 31 and the second pushing rod 33, the bottom ends of the two will drive the first connecting block 32 and the second connecting plate 34 to move, respectively; with the movement of the first connecting block 32 and the second connecting plate 34, the bottom ends thereof will clean the dust inside the gap between the inspection well cover and the edge of the road surface, thereby reducing the tightness of the contact between the inspection well cover and the road surface.

[0038] With the movement of the pushing assembly 3 as a whole, the first pushing rod 31 and the second pushing rod 33 will drive the circular ring tooth plate 4 to rotate inside the upper end of the placing frame 1, and the rotation of the circular ring tooth plate 4 will drive the movable assembly 7 to move up and down inside the placing frame 1 through the first gear 5 and the second gear 6, with the up and down movement of the movable pipe 71, the lower ends of the two movable pipes 71 will gradually enter the bottom of the manhole cover through the hole in the top of the manhole cover, at this time, the positioning rod 82 is pressed downward to drive the extrusion column 81 to move downward inside the movable pipe 71, when the extrusion column 81 moves downward and extrudes the top of the abutting plate 101, at this time, the outer ends of the four abutting plates 101 will expand outward from the inside of the movable pipe 71 through the groove 9, due to the outward expansion of the abutting plate 101, the bottom of the hole in the top of the manhole cover will be blocked, at the same time, the second fixed plate 112 is rotated to pass through the inside of the upper end of the positioning assembly 8 and is located above the slot hole in the top of the pulling block 2, at this time, the placing block 113 is pulled to make the bottom end enter the inside of the slot hole, thereby realizing the fixation of the whole fixed assembly 11 and the limiting of the positioning assembly 8, at this time, the worker holds the pulling block 2 and pulls it upward, at this time, due to the blocking of the abutting plate 101 and the cleaning of the dust on the edge of the manhole cover by the first connecting block 32 and the second connecting plate 34, the operator can more conveniently and safely take the manhole cover upward, thereby facilitating the subsequent repair of the damaged area in the top thereof.

[0039] Conversely, the positioning of the positioning assembly 8 by the fixed assembly 11 is released, due to the cooperation of the second spring telescopic cylinder 12, the extrusion column 81 will move upward, the four abutting plates 101 will move to the inside of the movable assembly 7 through the first spring telescopic cylinder 102, thereby releasing the fixed clamping taking effect of the device.

[0040] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0041] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A repair device for damaged road manhole covers, comprising a placement frame (1), characterized in that: A pull block (2) is fixedly installed on the top of the placement frame (1). Pushing components (3) are movably connected to both sides inside the placement frame (1). Circular toothed plates (4) are fixedly connected to the inner ends of the two pushing components (3). The circular toothed plates (4) are movably connected to the inner wall of the placement frame (1). First gears (5) are meshed with both sides of the inner wall of the circular toothed plates (4). Second gears (6) are meshed with the ends of the two first gears (5) away from the circular toothed plates (4). Both the first gears (5) and the second gears (6) are fixedly connected to the placement frame (1) through a first fixing plate. The first gear (5) and the second gear (6) are both connected to the bearing of the first fixed plate. The inner walls of the two second gears (6) are threaded with movable components (7). The two sides of the lower end of the movable components (7) are movably engaged in the interior of the placement frame (1). The interiors of the two movable components (7) are movably connected with positioning components (8). The outer walls of the lower ends of the two movable components (7) are provided with four grooves (9) at equal angles. The interiors of the four grooves (9) are movably connected with abutting components (10). The abutting components (10) are located at the lower end of the inner cavity of the movable components (7). A fixing component (11) is fixedly installed at the middle of the top of the pull block (2). A second spring telescopic cylinder (12) is fixedly installed on the side of the top of the pull block (2) away from the fixing component (11). The top of the second spring telescopic cylinder (12) is fixedly connected to the positioning component (8). Pull plates (13) are fixedly installed at both ends of the outer side wall of the upper end of the placement frame (1). The pushing assembly (3) includes a first pushing rod (31) and a second pushing rod (33). The outer walls of the first pushing rod (31) and the second pushing rod (33) are movably connected to the inner wall of the placement frame (1). The bottom surfaces of the inner ends of the first pushing rod (31) and the second pushing rod (33) are respectively fixedly connected to a first connecting block (32) and a second connecting plate (34). The upper and lower ends of the side walls of the first connecting block (32) and the second connecting plate (34) are fixedly installed with arc-shaped spring telescopic cylinders (35). The side of the arc-shaped spring telescopic cylinder (35) away from the first connecting block (32) and the second connecting plate (34) is fixedly connected to the placement frame (1). The bottom of the first connecting block (32) and the second connecting plate (34) are both pointed. The active component (7) includes an active tube (71), and there are two active tubes (71). The outer side walls of the two active tubes (71) are threadedly connected to the inner wall of the second gear (6). The outer side walls at the lower ends of the two active tubes (71) are fixedly connected to a limiting rod (72). Both ends of the limiting rod (72) are movably engaged inside the placement frame (1). The positioning component (8) includes two extrusion columns (81), both of which are movably connected inside the movable tube (71). The tops of the two extrusion columns (81) extend above the pull block (2) and are fixedly mounted with positioning rods (82). The outer sidewall of the bottom of the extrusion column (81) is inclined. The abutment assembly (10) includes abutment plates (101), four abutment plates (101) are circumferentially and equidistantly fitted inside the groove (9), and a first spring telescopic cylinder (102) is fixedly installed at both ends of the inner sidewall of the abutment plate (101). The end of the first spring telescopic cylinder (102) away from the abutment plate (101) is fixedly connected to the movable assembly (7), and the top of the abutment plate (101) is in contact with the extrusion column (81). The top of each of the four contact plates (101) near the extrusion column (81) is sloped.

2. The road manhole cover area damage repair device according to claim 1, characterized in that: The fixing component (11) includes a fixing rod (111), which is fixedly connected to the top of the pulling block (2). A second fixing plate (112) is movably sleeved on the outer side wall of the upper end of the fixing rod (111), and a locking block (113) is movably sleeved on the inner side of the second fixing plate (112) away from the fixing rod (111).

3. The road manhole cover damage repair device according to claim 1, characterized in that: The top of the pull block (2) is provided with a slot on the side away from the positioning component (8), and the inner diameter of the slot is the same as the outer diameter of the bottom of the card block (113).

4. A road manhole cover damage repair device according to claim 1, characterized in that: The outer surfaces of the two movable tubes (71) and the inner wall of the second gear (6) are threaded, and the thread patterns of the two are compatible.

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