KR101614021B1 - Apparatus for removing manhole cover and maintenance method of manhole cover - Google Patents

Apparatus for removing manhole cover and maintenance method of manhole cover Download PDF

Info

Publication number
KR101614021B1
KR101614021B1 KR1020150181412A KR20150181412A KR101614021B1 KR 101614021 B1 KR101614021 B1 KR 101614021B1 KR 1020150181412 A KR1020150181412 A KR 1020150181412A KR 20150181412 A KR20150181412 A KR 20150181412A KR 101614021 B1 KR101614021 B1 KR 101614021B1
Authority
KR
South Korea
Prior art keywords
bit
manhole cover
center
plate
distance
Prior art date
Application number
KR1020150181412A
Other languages
Korean (ko)
Inventor
유조웅
이영규
Original Assignee
대실테크 주식회사
(주)세정엔지니어링
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=55915876&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR101614021(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 대실테크 주식회사, (주)세정엔지니어링 filed Critical 대실테크 주식회사
Priority to KR1020150181412A priority Critical patent/KR101614021B1/en
Application granted granted Critical
Publication of KR101614021B1 publication Critical patent/KR101614021B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1445—Tools for positioning or removing cover frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/225—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising for scoring or breaking, e.g. tiles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/128—Repairs of manhole shafts

Abstract

A manhole cover removing apparatus according to an embodiment of the present invention includes a rotating plate to which a motor unit is connected; A plurality of bit members located at a predetermined distance from an edge of the rotating plate and including a bit for breaking an edge of the manhole cover; And a length adjuster for adjusting a distance between the bit of the at least a part of the plurality of bit members and the center of the rotary plate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a manhole cover lifting apparatus and a manhole cover lifting apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole cover lifter and a manhole cover lifting method using the same, and more particularly, to a manhole cover lifter for lifting and shoveling a road pavement by rotation and a method for repairing a manhole cover using the same .

A manhole cover is installed at regular intervals to repair various facilities such as a water pipe, a sewage pipe, a power cable, and a communication cable buried in the underground of a road. If there is a problem in construction of the manhole cover, or when the road around the manhole cover cracks, breaks, or sinks due to aging due to the vehicle or person passing through the road, the manhole cover should be removed and repaired.

Generally, the road around the manhole cover is cut, and the road surface between the manhole cover and the cut line is crushed using a braker to remove the manhole cover. However, when the manhole cover is demolished by manpower using a breaker, a lot of noise is generated, a lot of manpower is required, and it takes at least one hour to dismantle.

Alternatively, a manhole cover demolition machine including a rotating plate is used to demolish the manhole cover. In the manhole cover demolition machine including the rotating plate, the size of the demolished manhole cover is determined, and the manhole cover Use a demolition machine or replace the rotating plate. Accordingly, it is inconvenient to dismantle the manhole cover of various sizes, or it takes a lot of time to replace the rotating plate, and it is burdensome to provide a rotating plate of various sizes.

Korean Patent No. 10-0746970 (2007. 08. 07 Announcement)

The present invention provides a manhole lid demolition apparatus capable of demolishing manhole lids of various sizes and reducing demolition time of the manhole lid, and a method for repairing a manhole lid using the same.

According to an aspect of the present invention, a manhole cover demolition apparatus includes a rotating plate to which a motor unit is connected; A plurality of bit members located at a predetermined distance from an edge of the rotating plate and including a bit for breaking an edge of the manhole cover; And a length adjuster for adjusting a distance between the bit of the at least a part of the plurality of bit members and the center of the rotary plate.

A rotating plate to which a motor unit is connected; A plurality of bit members located at a predetermined distance from an edge of the rotating plate and including a bit for breaking an edge of the manhole cover; And a length adjuster for adjusting a distance between the bit of the at least a part of the plurality of bit members and the center of the rotary plate.

And a center shaft extending downward at the center of the lower portion of the rotating plate and positioned at the center of the manhole cover.

The bit member includes a first bit member having a first bit at an end thereof and a second bit member having a second bit different from the first bit at an end thereof.

The first bit is composed of conic bits, and the second bit is composed of oblique bits having inclined surfaces formed obliquely.

The second bit is positioned to be spaced a first distance from the center of the swivel plate and the first bit is spaced from the center of the swivel plate by a second distance greater than the first distance.

A plurality of the first bit members are provided, and a plurality of the second bit members are provided, and the first bit member and the second bit member are alternately positioned in the circumferential direction of the rotation plate.

Wherein the length adjusting portion includes a plurality of fastening holes spaced apart from each other in the radial direction at a predetermined distance from a center of the rotating plate toward an edge thereof; A fixing hole formed in the bit member; And a fastening member for fastening the fastening hole and the fastening hole.

The bit member includes a fixing portion formed parallel to the rotation plate and fixed to the rotation plate, an extension portion bent from the fixing portion and extending downward from the edge of the rotation plate and having the bit at an end thereof, A lower plate, and an upper plate formed to cover a space where the fixing unit is positioned above the lower plate, wherein the fixing hole is formed in the fixing portion, and the plurality of coupling holes are formed in the lower plate and the upper plate do.

And a water supply unit integrally fixed to the rotary plate for supplying water around the bit member.

The water supply unit includes a water supply tank integrally fixed to the rotary plate, a hose fixed to the bit member from a lower portion of the water supply tank, and an adjusting member for controlling the flow of water between the water supply cap and the hose.

The rotary plate has a circular shape, and the water supply tank has an annular shape formed along an edge of the rotary plate at an upper portion of the rotary plate.

The first bit and the second bit are located at the same vertical position or height or at different vertical positions or heights.

According to an aspect of the present invention, there is provided a method for repairing a manhole cover, the method comprising: a demolition step of demolishing and breaking the road at the periphery of the manhole cover to remove the manhole cover removing apparatus; A concrete casting step in which a manhole cover is reinstalled and a quick-setting lightweight high-strength concrete is blended so as to pour into a manhole cover periphery and a height adjustment section; And a packaging finishing step of placing and finishing a packaging finishing material between the manhole cover and the cut and crushed road, wherein the manhole cover removing device comprises: a rotating plate to which the motor part is connected; And a plurality of bit members including a first bit member having a first bit at an end and a second bit member having a second bit different from the first bit at an end thereof, Two bits are positioned so as to be spaced apart from the center of the rotary plate by a first distance, and the first bit is located apart from the center of the rotary plate by a second distance larger than the first distance.

Wherein the manhole cover removing unit includes a length adjusting unit that adjusts a distance between at least one of the first and second members and the center of the rotating plate so that the first and second members And the center of the rotating plate is adjusted.

In the demolding step, the first bit cuts the peripheral portion of the manhole cover, and the second bit is crushed between the portion where the first bit is cut and the manhole cover, so that it can be cut and broken at one time.

And a water supply unit which is integrally fixed to the rotating plate to supply water to the periphery of the bit member, and in the demolishing step, the water supply port provides water to cool the heat generated in the demolishing step Prevent dust generation.

The manhole cover lifter according to the present embodiment can change the position of the bit by using the length adjuster even if the size of the manhole cover is changed and can be used for demolishing various manhole covers. At this time, since the first bit member and the second bit member are spaced apart from each other by a distance from the center of the rotary plate, the peripheral portion of the manhole cover can be cut and crushed at a time, and the process time for demolishing the manhole cover can be reduced. And the water supply portion is integrally fixed to the rotating plate, thereby improving the effect of the water supply, thereby simplifying the structure of the manhole cover lifter.

Further, according to the method of repairing a manhole cover according to an embodiment of the present invention, the peripheral portion of the manhole cover can be cut and crushed at one time and removed. Thus, the removal of the manhole cover can be performed by a simple process, thereby simplifying the repair method of the manhole cover and minimizing the processing time.

1 is an exploded perspective view of a manhole cover lifter and a motor unit according to an embodiment of the present invention.
2 is a perspective view of the manhole cover lifter shown in FIG.
3 is a rear perspective view of the manhole cover lifter shown in FIG.
FIG. 4 is a perspective view illustrating the first and second bit members of the manhole cover removing apparatus shown in FIG. 1. FIG.
5 is a flowchart illustrating a method of repairing a manhole cover according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it is needless to say that the present invention is not limited to these embodiments and can be modified into various forms.

In the drawings, the same reference numerals are used for the same or similar parts throughout the specification. In the drawings, the thickness, the width, and the like are enlarged or reduced in order to make the description more clear, and the thickness, width, etc. of the present invention are not limited to those shown in the drawings.

Wherever certain parts of the specification are referred to as "comprising ", the description does not exclude other parts and may include other parts, unless specifically stated otherwise. Also, when a portion of a layer, film, region, plate, or the like is referred to as being "on" another portion, it also includes the case where another portion is located in the middle as well as the other portion. When a portion of a layer, film, region, plate, or the like is referred to as being "directly on" another portion, it means that no other portion is located in the middle.

Hereinafter, a method for repairing a manhole cover according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a manhole cover lifter and a motor unit according to an embodiment of the present invention. FIG. 2 is a perspective view of the manhole cover lifter shown in FIG. 1, and FIG. 3 is a rear perspective view of the manhole cover lifter shown in FIG. And FIG. 4 is a perspective view illustrating the first and second bit members of the manhole cover removing apparatus shown in FIG.

1, a manhole cover removing apparatus 100 according to the present embodiment includes a rotating plate 10 to which a motor unit 40 is connected, a plurality of bit members (not shown) And a water supply unit 30 which is integrally fixed to the rotary plate 10 and supplies water to the periphery of the bit member 20.

A motor section (40) is connected to the upper center of the rotary plate (10). As the motor unit 40, various motor units capable of rotating the rotary plate 10 can be applied. For example, a hydraulic motor or the like may be used as the motor section.

When the motor unit 40 receives power, the rotary plate 10 connected to the motor unit 40 rotates. The rotary plate 10 has a circular planar shape so as to correspond to a manhole cover having a circular shape and can minimize an area during rotation. However, the present invention is not limited thereto, and the planar shape of the rotary plate 10 can be variously modified.

In the present embodiment, a center axis 16 extending downward may be located at the center of the lower portion of the rotary plate 10. The center shaft 16 is positioned at the center of the manhole cover so that the bit member 20 positioned at a predetermined distance from the edge of the rotary plate 10 is centered by the center shaft 16 with respect to the center shaft 16 The road surface of the periphery of the manhole cover can be equally crushed by the bit member 20 in a balanced state.

A plurality of bit members 20 positioned at regular intervals can be extended downward in the vicinity of the edge of the rotary plate 10. Accordingly, the edge of the manhole cover can be broken by extending from the edge of the rotating plate 10 to the edge of the manhole cover.

At this time, the distance between the bit 22a, 22b contacting the periphery of the manhole cover and the center of the rotary plate 10 can be adjusted by the plurality of bit members 20. That is, a length adjuster for adjusting the distance between the bits 22a and 22b and the center of the rotary plate 10 is provided. Although in the present embodiment all of the plurality of bit members 22 are adjustable between the centers of the bit plates 22a, 22b and the rotary plate 10 by the length adjusting unit, the present invention is not limited thereto. Therefore, only the bits 22a and 22b of the plurality of bit members 22 can be adjusted in the distance from the center of the rotary plate 10 by the length adjusting portion.

More specifically, the bit member 20 includes a first bit member 22 having a first bit 22a at an end thereof. The first bit member 22 includes a first fixing portion 22b formed parallel to the rotating plate 10 and fixed to the rotating plate 10 and a second fixing portion 22b bent from the first fixing portion 22b to extend downward, And a first extension 22c having one bit 22a. In this embodiment, a plurality of first bit members 22 are provided, and a plurality of first bit members 22 may be arranged symmetrically at an equal angle with each other in the circumferential direction.

At this time, the first bit 22a may be composed of conical bits.

And the bit member 20 may include a second bit member 24 having a first bit 22a at the end and a second bit 24a different from the first bit 22a. The second bit member 24 includes a second fixing portion 24b formed parallel to the rotary plate 10 and fixed to the rotary plate 10 and a second fixing portion 24b extending from the second fixing portion 24b to the lower portion, And a second extension 24c having two bits 24a. In this embodiment, a plurality of second bit members 24 are provided, and a plurality of second bit members 24 may be symmetrically arranged at uniform angles from each other in the circumferential direction. At this time, the second bit member 24 is positioned between two neighboring first bit members 20 such that the first bit member 22 and the second bit member 24 can be positioned one after the other have. And the second bit member 24 is disposed to be centered between the two neighboring first bit members 20 such that the first bit member 22 and the second bit member 240 are at an angle They can be arranged symmetrically.

At this time, the second bit 24a may be composed of oblique bits. That is, the first bit 24a may be an oblique bit cut so as to have an inclined surface inclined in one direction so as to have an angle with the bottom surface. In this way, the first bit 22a and the second bit 24a have different shapes, so that the road surface around the manhole cover can be effectively broken.

At this time, the bit member 20 can be fixed to the rotary plate 10 by adjusting the distance between the center of the rotary plate 10 and the bits 22a and 24a by the length adjusting unit. The length adjuster may have various structures, methods, and the like.

For example, in the figure, the rotary plate 10 has a lower plate 12 and an upper plate 14. At this time, the bottom plate 12 is made of a flat surface and the top plate 14 is fixed to the fixing portions 22b, 24b of the bit members 22, 24 so that the fixing portions 22b, 24b of the bit members 22, And a protruding portion 14a protruding upward so as to have a shape corresponding to each of the fixed portions 22b and 24b. The top plate 14 may have a shape extending in the radial direction from the center of the rotary plate 10 toward the edge. A plurality of top plates 14 may be provided to correspond to the plurality of bit members 20. The plurality of upper plates 14 are symmetrically arranged from the center of the rotary plate 10 to the edge of the rotary plate 10 with a uniform center angle so that the plurality of bit members 20 can be arranged symmetrically with a uniform center angle to each other As shown in FIG.

The fixing portions 22b and 24b of the bit member 20 can be inserted into the space between the top plate 14 and the bottom plate 12. [ Fixing holes 22d and 24d for fixation are formed in the fixing portions 22b and 24b and protrusions 14a and corresponding lower plates 12 are formed at predetermined intervals in the radial direction from the center to the edge of the rotary plate 10, A plurality of fastening holes 12d and 14d spaced apart from each other are formed. The bit member 20 can be fixed to the rotary plate 10 by fastening the fastening holes 12d and 14d and the fastening holes 22d and 24d using the fastening member 42. [ At this time, the fastening member 42 may be composed of a bolt 42a, a nut 42b, or the like. However, the present invention is not limited thereto, and various constructions can be applied to the fastening member 42.

At this time, the fixing holes 22d and 24d of the fixing portions 22b and 24b and the fixing holes 12d and 24d adjacent to the center of the rotary plate 10 in the state where the fixing portions 22b and 24b are inserted into the center of the rotary plate 10, The first or second bit 22a or 24a is fixed close to the center of the rotary plate 10 by fixing the fixing portions 22b and 24b and the rotary plate 10 by fastening the fastening members 42 to the rotary plates 10 and 14d can do. The fastening portions 22b and 24b are fastened to the fixing holes 22d and 24d of the fixing portions 22b and 24b and the fastening portions 22d and 24d spaced apart from the center of the rotary plate 10 in a state of being positioned between the projecting portions 14a and the lower plate 12, When the fixing portions 22b and 24b and the rotary plate 10 are fixed by fastening the fastening member 42 to the holes 12d and 14d, the first or first bit 22a or 24a is fixed to the rotary plate 10 It can be fixed away from the center.

That is, in the present embodiment, the fixing holes 22d and 24d of the bit member 20, the plurality of fastening holes 12d of the rotary plate 10, and the fastening member 42 constitute the length adjusting portion. According to this, the length of the bit member 20 can be easily adjusted by a simple structure. However, such a configuration is merely an example, and the present invention is not limited thereto. Accordingly, a length adjusting unit having various structures and systems may be provided.

At this time, in the present embodiment, the second bit 24a made of oblique bits is separated from the center of the rotary plate 10 by the first distance L1, and the first bit 22a made up of the conical bits is positioned at the center of the rotary plate 10 The operator can remove the manhole cover by operating the manhole cover remover 100 in a state that the manhole cover remover 100 is spaced apart from the first distance L2 by a second distance L2 that is longer than the first distance L1. The first bit 22a then cuts the outer portion of the manhole cover and the second bit 24a between the manhole cover and the outer portion of the manhole cover cut by the first bit 22a. Then, the edges of the manhole cover can be cut and shred at a time, thereby reducing the time required for removing the manhole cover.

In the figure, the first bit 22a and the second bit 22a are located at the same vertical position (or height), but the present invention is not limited thereto. Therefore, the first bit 22a and the second bit 22a may be located at different upper and lower positions.

The water supply unit 30 may be fixed to the rotary plate 10. The water supply section 30 includes a water supply tank 32 fixed to the upper portion of the rotary plate 10 and a water supply tank 32 extending from the lower side of the water supply tank 32 to the side of the bit member 20 (more specifically, the extension portions 22c and 24c) And a regulating member 36 for controlling the flow of water between the water supply water hammer 32 and the hose 34. [

The water supply tank 32 is formed along the edge of the rotary plate 10 at an upper portion of the rotary plate 10 and can be integrally fixed to the rotary plate 10. For example, the water supply tank 32 may have an annular shape formed along an edge of the circular rotary plate 10 at an upper portion of the rotary plate 10. Then, the water supply tank 32 can be formed with a sufficient area while being fixed to the rotary plate 10. An upper portion of the water supply tank 32 may be provided with an inlet port 32a connected to the internal storage space of the water supply tank 32 and a stopper 32b blocking the inlet port 32a so that water can be filled. The water supply tank 32 is provided with an inlet port 32a and a stopper 32b at an upper portion of the water supply tank 32 so that water can be easily filled in the water supply tank 32. [

A discharge port 32c is formed in the lower portion of the rotary plate 10 and a hose 34 is connected to the discharge port 32c. A regulating member 36 may be provided on the hose adjacent to the outlet port 32c to control the flow of water and / or the amount of water supplied to the hose 34. For example, as the adjusting member 36, a valve or the like may be used. The discharge port 32c and the hose 34 are located at the lower portion of the water supply tank 32 so that water can be easily supplied to the hose 34. [

In this embodiment, since the water supply tank 32 is fixed to the rotary plate 10, it is possible to improve the effect of water supply and to simplify the structure, compared to a water supply unit provided in a separate vehicle or the like.

The hose 34 may be secured to the side of the bit member 20. A hose passage 20a having both ends opened to allow the hose 34 to pass therethrough is formed on the side surface of the bit member 20 so that the hose 34 passes through the hose passage 20a, The passage 20a can be fixed to the side surface of the bit member 20 (more specifically, the side surface of the extension portions 22c and 24c). Thus, even when the rotary disk 10 rotates, the hose 34 can stably supply water to the bits 22a and 24a.

In one example, the hose 34 may be positioned one by one on the side of the extension 22c of the first bit member 22. This is because, when the first bit member 22 is operated by positioning the hose 34 on the first bit member 22, it is possible to effectively prevent dust from flowing out to the outside. However, the present invention is not limited thereto.

The water provided in the water supply section 30 can prevent dust from being generated during dismantling of the manhole cover and can lower the temperatures of the bits 22a and 24a where frictional heat with the road surface occurs during crushing and excavation.

The center shaft 16 of the manhole cover lifter 100 according to the present embodiment is positioned at the center of the manhole cover and the bits 22a and 24a are brought into close contact with the road surface of the manhole cover or the peripheral portion, (40) to operate the manhole cover remover (100). Then, the rotary plate 10 is rotated and the bits 22a and 24a fixed to the rotary plate 10 are rotated in contact with the road surface, and the road surface around the manhole cover is crushed and excavated. At this time, the control member 36 is opened to spray water from the water supply tank 32 so that the water flows down to the bits 22a and 24a, thereby reducing the generation of dust generated during crushing and digging of the road surface, , And 24a.

In this case, the first bit 22a and the second bit 24a may be spaced apart from the manhole cover by a predetermined distance in consideration of the size of the manhole cover. Accordingly, even if the size of the manhole cover changes, the length of the first and second bits 22a and 24a can be changed using the length adjusting unit. Accordingly, the manhole cover removing apparatus 100 according to the present embodiment can be used for demolishing various manhole covers.

In this embodiment, the second bit 24a is positioned at a first distance L1 from the center of the rotary plate 10, and the first bit 22a is positioned at a first distance L1 from the center of the rotary plate 10, (L2), which is farther from the first distance L1 than the first distance L2. The first bit 22a then cuts the outer portion of the manhole cover and the second bit 24a breaks it between the manhole cover and the outer portion of the manhole cover cut by the first bit 22a . Then, the peripheral portion of the manhole cover can be cut and shred at a time, thereby reducing the time required for removing the manhole cover.

Hereinafter, referring to FIGs. 1 to 4 and FIG. 5, a method of repairing a manhole cover according to an embodiment of the present invention will be described in detail.

5 is a flowchart illustrating a method of repairing a manhole cover according to an embodiment of the present invention.

Referring to FIG. 5, the method of repairing a manhole cover according to the present embodiment includes a demolition step ST10, a concrete placing step ST20, and a packaging finishing step ST30.

In the demolition step ST10, the road (or the road surface) of the periphery of the manhole cover is excavated by using the manhole cover lifter 100. [ At this time, the motor unit 40 is rotated in the state where the center shaft 16 of the manhole cover removing unit 100 is positioned at the center of the manhole cover and the bits 22a and 24a are brought into close contact with the road surface of the manhole cover, Thereby actuating the manhole cover remover 100. As shown in FIG.

Considering the size of the manhole cover, the distance between the first and second bits 22a and 24a and the center of the rotary plate 10 can be adjusted by the distance control unit before the demolition step ST10. The second bit 24a is positioned at a first distance L1 from the center of the rotary plate 10 and the first bit 22a is positioned at a first distance L1 from the center of the rotary plate 10 The second distance L2 is longer than the second distance L2. Then, the first bit 22a rotates in contact with the road surface, cutting the road surface around the manhole cover, and crushing between the outer portions of the manhole cover where the first bit 24a is cut. Thus, the manhole cover can be removed by cutting and crushing the periphery of the manhole cover at a time. On the other hand, in the conventional manhole lid demolition machine, after the periphery of the manhole cover is cut into a manhole lid demolition machine including a rotating plate including a bit, the cut part and the manhole lid are crushed using another equipment or the like.

At this time, the control member 36 is opened to spray water from the water supply tank 32 so that the water flows down to the bits 22a and 24a, thereby reducing the generation of dust generated during crushing and digging of the road surface, , And 24a.

Then, in the concrete pouring step (ST20), the manhole cover is reinstalled and the quick-speed lightweight high-strength concrete blended with the quick-speed lightweight high-strength concrete is placed in the periphery of the manhole cover and the height adjuster. Various types of materials can be used for the quick lightweight high strength concrete.

Then, in the packaging finishing step ST30, after installing the manhole cover, a packaging finishing material is laid in a space between the outer circumferential surface of the manhole cover and the road cut by the manhole cover removing unit 100, and the manhole cover is fixed by compaction. Various materials known as packaging finishes may be used. Thus, the repair of the manhole cover can be completed.

In this embodiment, the manhole cover is demolished in a state that the first bit 22a and the second bit 24a of the manhole cover removing unit 100 are located at different positions, so that the periphery of the manhole cover is cut and crushed at one time, can do. Thus, the removal of the manhole cover can be performed by a simple process, thereby simplifying the repair method of the manhole cover and minimizing the processing time.

Features, structures, effects and the like according to the above-described embodiments are included in at least one embodiment of the present invention, and the present invention is not limited to only one embodiment. Further, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified in other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

100: Manhole lid demolition machine
10: Spindle plate
20:
30:

Claims (16)

A rotating plate to which a motor unit is connected;
A plurality of bit members located at a predetermined distance from an edge of the rotating plate and including a bit for breaking an edge of the manhole cover;
A length adjuster for adjusting a distance between the bit of at least a part of the plurality of bit members and the center of the rotating plate; And
And a water supply unit integrally fixed to the rotating plate to supply water to the periphery of the bit member. The method according to claim 1,
And a center shaft extending downward at a center of a lower portion of the rotating plate and positioned at a center of the manhole cover. The method according to claim 1,
Wherein the bit member comprises a first bit member having a first bit at an end and a second bit member having a second bit different from the first bit at an end thereof. The method of claim 3,
Wherein the first bit comprises a conic bit,
Wherein the second bit comprises slanting bits having sloped slopes. 5. The method of claim 4,
Wherein the second bit is positioned to be spaced a first distance from the center of the turntable and the first bit is spaced from the center of the turntable by a second distance greater than the first distance. The method of claim 3,
A plurality of first bit members are provided,
A plurality of second bit members are provided,
Wherein the first bit member and the second bit member are alternately positioned one by one in the circumferential direction of the rotating plate. The method according to claim 1,
The length-
A plurality of fastening holes spaced apart from each other by a predetermined distance in the radial direction from a center of the rotating plate toward an edge;
A fixing hole formed in the bit member; And
And a fastening member for fastening the fastening hole and the fastening hole
A manhole lid demolition machine. 8. The method of claim 7,
Wherein the bit member includes a fixing portion formed parallel to the rotation plate and fixed to the rotation plate, an extension portion bent from the fixing portion and extending downward from the edge of the rotation plate,
The rotating plate includes a bottom plate and an upper plate formed to cover a space where the fixing portion is located above the bottom plate,
The fixing hole is formed in the fixing portion,
And the plurality of fastening holes are formed in the bottom plate and the top plate. delete The method according to claim 1,
Wherein the water supply unit includes a water supply tank integrally fixed to the rotary plate, a hose fixed to the bit member from a lower portion of the water supply tank, and a control member for controlling a flow of water between the water supply tank and the hose, group. 11. The method of claim 10,
Wherein the rotary plate has a circular shape,
Wherein the water supply tank has an annular shape formed along an edge of the rotary plate at an upper portion of the rotary plate. The method of claim 3,
Wherein the first bit and the second bit are located at the same vertical position or height or at different vertical positions or heights. A demolition stage in which the manhole cover demolition machine is demolished by cutting and crushing the roads in the periphery of the manhole cover;
A concrete casting step in which a manhole cover is reinstalled and a quick-setting lightweight high-strength concrete is blended so as to pour into a manhole cover periphery and a height adjustment section; And
A packaging finishing step between the manhole cover and the cut and shredded road,
Lt; / RTI >
The manhole cover removing apparatus comprising: a rotating plate to which a motor unit is connected; A plurality of bit members including a first bit member having a first bit at an end and a second bit member having a second bit different from the first bit at an end thereof; And a water supply unit fixed integrally to supply water around the bit member,
Wherein the second bit is positioned so as to be spaced apart from the center of the turntable by a first distance and the first bit is spaced from the center of the turntable by a second distance larger than the first distance, And crushed,
Wherein the water supply adduct is provided to cool the heat generated in the demolishing step to prevent dust from being generated. 14. The method of claim 13,
Wherein the manhole cover removing unit includes a length adjusting unit for adjusting a distance between at least one of the first and second members and the center of the rotating plate,
Wherein the distance between the first and second members and the center of the rotating plate is adjusted according to the size of the manhole cover before the demolding step. 14. The method of claim 13,
Wherein the first bit cuts the peripheral portion of the manhole cover and the second bit breaks a portion between the portion where the first bit is cut and the manhole cover, Way. delete
KR1020150181412A 2015-12-18 2015-12-18 Apparatus for removing manhole cover and maintenance method of manhole cover KR101614021B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150181412A KR101614021B1 (en) 2015-12-18 2015-12-18 Apparatus for removing manhole cover and maintenance method of manhole cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150181412A KR101614021B1 (en) 2015-12-18 2015-12-18 Apparatus for removing manhole cover and maintenance method of manhole cover

Publications (1)

Publication Number Publication Date
KR101614021B1 true KR101614021B1 (en) 2016-04-29

Family

ID=55915876

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150181412A KR101614021B1 (en) 2015-12-18 2015-12-18 Apparatus for removing manhole cover and maintenance method of manhole cover

Country Status (1)

Country Link
KR (1) KR101614021B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101741019B1 (en) * 2016-08-17 2017-05-29 대실테크 주식회사 Manhole rehabilitation apparatus Having The standard is available round road excavation excavator And Integral formwork height adjuster and method using the same.
WO2020009650A1 (en) * 2018-07-06 2020-01-09 Bästkustens Marin Design Asphalt milling device and method for milling asphalt around a manhole
KR102094416B1 (en) * 2019-03-29 2020-03-27 이동균 Apparatus for crushing road and repair method using the same
KR20200115194A (en) * 2020-03-19 2020-10-07 이동균 Apparatus for crushing road and repair method using the same
EP3719209A2 (en) 2019-04-02 2020-10-07 Simex S.r.l. Excavating assembly and operating machine comprising this assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100746970B1 (en) 2006-10-16 2007-08-07 대실종합건설 주식회사 Paving cutter for repairing and proofing manhole cover
KR100746975B1 (en) * 2007-01-19 2007-08-07 대실종합건설 주식회사 Preparing method for paving cutter for repairing and proofing manhole cover
KR20140049156A (en) * 2012-10-16 2014-04-25 박경희 Manhole height adjustment implement and manhole construction method thereby
KR101454224B1 (en) * 2014-03-14 2014-10-23 삼서공업 주식회사 Manhole repair method using variable type circular cutter for excuting drilling and curring of road surface and compass type height adjuster

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100746970B1 (en) 2006-10-16 2007-08-07 대실종합건설 주식회사 Paving cutter for repairing and proofing manhole cover
KR100746975B1 (en) * 2007-01-19 2007-08-07 대실종합건설 주식회사 Preparing method for paving cutter for repairing and proofing manhole cover
KR20140049156A (en) * 2012-10-16 2014-04-25 박경희 Manhole height adjustment implement and manhole construction method thereby
KR101454224B1 (en) * 2014-03-14 2014-10-23 삼서공업 주식회사 Manhole repair method using variable type circular cutter for excuting drilling and curring of road surface and compass type height adjuster

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101741019B1 (en) * 2016-08-17 2017-05-29 대실테크 주식회사 Manhole rehabilitation apparatus Having The standard is available round road excavation excavator And Integral formwork height adjuster and method using the same.
WO2020009650A1 (en) * 2018-07-06 2020-01-09 Bästkustens Marin Design Asphalt milling device and method for milling asphalt around a manhole
SE543491C2 (en) * 2018-07-06 2021-03-09 Baestkustens Marin Design Asphalt milling device and method for milling asphalt around a manhole
KR102094416B1 (en) * 2019-03-29 2020-03-27 이동균 Apparatus for crushing road and repair method using the same
EP3719209A2 (en) 2019-04-02 2020-10-07 Simex S.r.l. Excavating assembly and operating machine comprising this assembly
KR20200115194A (en) * 2020-03-19 2020-10-07 이동균 Apparatus for crushing road and repair method using the same
KR102177731B1 (en) * 2020-03-19 2020-11-11 이동균 Apparatus for crushing road

Similar Documents

Publication Publication Date Title
KR101614021B1 (en) Apparatus for removing manhole cover and maintenance method of manhole cover
US4454039A (en) Frame and cover members for constructing apertures in road surfaces
US5318376A (en) Manhole frame
US10024006B2 (en) Road surface crushing apparatus
KR101630346B1 (en) Manhole repairing method
KR101974783B1 (en) Manhole repair system and technique
KR100662002B1 (en) A free height controllable manhole, method for constructiong and method of repairing thereof
CN105926680B (en) A kind of double-layer multifunctional manhole lid device
KR101125089B1 (en) Construction of manholes method
KR101586808B1 (en) Circle cutter using engine power having axis of rotation
JP2007016510A (en) Temporary cover for manhole
KR101741019B1 (en) Manhole rehabilitation apparatus Having The standard is available round road excavation excavator And Integral formwork height adjuster and method using the same.
JP4976952B2 (en) Road surface repair method, rolling plate and guide member used therefor
KR20190037547A (en) The one-stop a repairing method of porthole, small-damaged part or a manhole
US11015307B1 (en) Road penetration and excavation system
US20070144788A1 (en) Setting utility access covers
KR20090132024A (en) Manhole repairing method and manhole repairing structure
US20190032299A1 (en) Leveling man-hole cover system and method of use
US9963851B2 (en) Underground access covers and methods of assembling the same
KR102062807B1 (en) Repair frame for manhole and method of manhole repair using it
CN210562321U (en) Anti-settling well lid
JP4026032B2 (en) Cover plate for lid plate
JP3653236B2 (en) Paving surface cutting equipment
JP2009024445A (en) Method of repairing manhole
JP7002081B2 (en) Manhole reinforcement structure

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
J204 Invalidation trial for patent
J301 Trial decision

Free format text: TRIAL NUMBER: 2016100004047; TRIAL DECISION FOR INVALIDATION REQUESTED 20161216

Effective date: 20180903

G170 Publication of correction
FPAY Annual fee payment

Payment date: 20190701

Year of fee payment: 4