KR20160046396A - Apparatus for circular drilling and cutting road surface to repair a manhole - Google Patents

Apparatus for circular drilling and cutting road surface to repair a manhole Download PDF

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Publication number
KR20160046396A
KR20160046396A KR1020140141845A KR20140141845A KR20160046396A KR 20160046396 A KR20160046396 A KR 20160046396A KR 1020140141845 A KR1020140141845 A KR 1020140141845A KR 20140141845 A KR20140141845 A KR 20140141845A KR 20160046396 A KR20160046396 A KR 20160046396A
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KR
South Korea
Prior art keywords
bar
manhole
vertical
horizontal
horizontal support
Prior art date
Application number
KR1020140141845A
Other languages
Korean (ko)
Inventor
나남열
Original Assignee
삼서건설 주식회사
삼서공업 주식회사
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Application filed by 삼서건설 주식회사, 삼서공업 주식회사 filed Critical 삼서건설 주식회사
Priority to KR1020140141845A priority Critical patent/KR20160046396A/en
Publication of KR20160046396A publication Critical patent/KR20160046396A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
    • E01C23/127—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus rotary, e.g. rotary hammers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/50—Methods or devices for preventing dust by spraying or sucking
    • 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

Abstract

The present invention relates to a device for circularly drilling and cutting a road surface to repair a manhole, capable of circularly cutting the road surface of a part of the manhole to be repaired around the manhole in order to repair the manhole installed in the road and, more specifically, relates to a device for circularly drilling and cutting a road surface to repair a manhole, capable of cutting a road up to a base layer while varying the cut radius of the road surface of a part of the manhole to be repaired. The device for circularly drilling and cutting a road surface to repair a manhole includes: a vertical rod (100); a manhole housing supporter (200) installed in the vertical rod to adhere closely to an inner wall surface of a manhole housing (H); a rotary screw rod (300) installed on the upper part of the vertical rod (100) to be able to idle; a horizontal supporter (400) coupled to the rotary screw rod (300) and moving upward along the rotary screw rod (300); and a cutting unit (500) installed in the horizontal supporter (400) and circularly cutting the road surface around the manhole while being lifted upward along the horizontal supporter (400).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a circular crushing cutter for repairing a manhole,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole repair circular cutter for cutting a road surface of a manhole maintenance part around a manhole for repairing a manhole installed on the road, The present invention relates to a circular crushing cutter for a manhole repair capable of cutting a base layer while being variable.

Generally, various facilities such as a water pipe, a sewer pipe, a wire, a communication cable and the like are embedded in the underground of a road, and a manhole is installed at a predetermined distance on the road for installation and maintenance of these facilities.

On the other hand, the roads must be repaired after a certain period of time because the surfaces are aged and uneven due to frequent passages of automobiles and various reasons. Such repair work usually involves overlaying the road surface. Since the manhole is also placed lower than the road surface due to the overlaying operation, or cracks are generated due to the fine settlement of the ground, it is aged due to various reasons. Manhole repair work should be carried out at intervals of

In the manhole repair work as described above, the peripheral road surface of the manhole housing is vertically cut using a cutter, and the road surface cut vertically is excavated and removed. When the manhole housing is raised, a height adjustment member is installed on the floor where the manhole housing is placed And then putting the manhole housing on it again and filling and curing road paving material such as asphalt on the space part of the excavated road surface.

In the above manhole repair work, the construction of cutting the road surface of the manhole repair part vertically is known as a conventional circular cutter for repairing a manhole, which is to be precisely cut into a circular shape in consideration of aesthetics, and Korean Patent No. 955789 is known.

1, a conventional manhole repair surface circular cutter 10 includes a fixed portion 11 to which a lower end is fixed on an upper surface of a manhole M, A connection bar 13 having a predetermined length at which one end is assembled via a coupling portion provided on an outer surface of the rotation support portion 12, And a cutting section 15 composed of a circular saw blade mounted on the moving bogie 14 and cutting the road pavement surface.

However, since the conventional circular cutter for manhole maintenance 10 as described above has a structure in which the stationary part 11 is self-sustained by the force of the electromagnet 11, a separate driving power for driving the electromagnet is required, In addition, when the road surface of the manhole maintenance part is inclined or a power failure occurs during the cutting operation, if the electromagnet loses its function, it is always exposed to the danger of being overturned while the balance is lost during the operation There is a problem.

In addition, it is difficult to adjust the cutting depth of the road surface and the load on the circular saw blade and the road surface is so large that it is very difficult to cut the road surface deeply, There is a problem that can not be done.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above problems, and it is an object of the present invention to provide a method and apparatus for safely self-sustaining regardless of the state of the road surface without requiring external driving power for self- The present invention provides a circular crushing cutter for repairing a manhole that can be used for a manhole repair.

In order to accomplish the above object, the present invention provides a manhole repair circular cut-breaking cutting machine comprising a vertical bar, a manhole housing support installed on the vertical bar so as to be closely contacted to an inner wall surface of the manhole housing, And a cutting unit installed on the horizontal support and lifting along the horizontal support to cut a road surface around the manhole into a circular shape. The cutting unit includes a rotary screw rod, a horizontal support rod coupled to the rotary screw rod to move up and down along the rotary screw rod, .

The horizontal supporting bar is provided with a second handle for rotating the rotary screw, and the upper surface of the horizontal supporting bar is supported by the horizontal supporting bar, A guide member for restricting the bar from turning to the left and right can be fixed.

The manhole housing support includes a first guide block fastened to the vertical bar, a second guide block hollowly fitted on the outer side of the first guide block, A third guide block coupled to a lower end of the vertical bar, and a second guide block coupled to the first guide block so as to be slidably movable in the third guide block in a state of being hinged to a lower end of the link, And a support rod which is pulled out from the third guide block and is brought into close contact with the inner wall surface of the manhole housing when it descends along the vertical bar.

In this case, it is preferable that a first handle for rotating the first guide block is coupled to the side of the first guide block.

The cutting unit includes a driving gear provided on a bottom surface of the horizontal support, a driven gear provided on the bottom surface of the horizontal support to rotate around the rotary screw, and a plurality of expanding bars provided radially at a lower end of the driven gear, And a cutting bit block provided at an end portion of the stretching bar.

A first vertical guide pipe is rotatably coupled to the upper end of the vertical bar, and a second vertical guide pipe is slidably mounted on the bottom of the horizontal support bar so as to be slidable outside the first vertical guide pipe. A guide groove is formed in a vertical direction on one side of the second vertical guide tube and a guide pin protruding from the guide groove on the outer side of the first vertical guide tube to restrict rotation of the second vertical guide tube, Can be combined.

In addition, a shield plate may be further provided at the edge of the horizontal support to isolate the structures provided inside the horizontal support from the outside.

Meanwhile, it is preferable that a water tank is installed on the upper part of the horizontal support, and a water supply hose capable of supplying water to the lower part of the cutting unit is connected to the water tank.

The manhole housing support includes a fixed block fixed to a lower end of the vertical bar, a horizontal spiral bar fixed to the fixed block so as to be accessible to the manhole housing, A protruding member fixed to the outer surface of the horizontal or tapered rods so as to rotate the horizontal or tapered rods; a contact member fitted to the horizontal or tapered rods so as to be positioned between the protruding member and the support rods; And a tightening nut fastened to the horizontal or tie rods so as to tightly close the tightening member to the manhole housing.

According to the present invention configured as described above, in the state where the manhole housing supporting member is closely contacted with the inner wall surface of the manhole housing, the cutting unit performs the crushing cutting of the road surface while lifting and lowering along with the horizontal support along the rotary bar provided on the upper portion of the manhole housing support Unlike the conventional art, it is possible to perform a precise cutting operation in a state in which the manhole can be reliably and independently held on the road surface of the manhole maintenance part without receiving any additional driving power from the outside.

In addition, the present invention is configured to rotate the rotary screw by using a second handle provided on the upper portion of the horizontal support stand of the cutting unit, so that the cutting depth of the road surface can be controlled very easily and precisely without being supplied with a separate drive power There is an effect that can be.

In addition, since the road surface is circularly cut using the bit block, the load on the road surface is not generated unlike the conventional method using the circular saw blade, so that the road surface of the manhole repair portion can be cut deeply and quickly to the base layer below the surface layer.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a conventional circular crushing cutter for use in manhole maintenance. FIG.
BACKGROUND OF THE INVENTION Field of the Invention [0001]
FIG. 3 is a side view of a state of use of a circular crushing cutter for repairing a manhole according to the present invention, showing a state before a road surface is broken. FIG.
Fig. 4 is a side view of a state of use of a circular crushing cutter for repairing a manhole according to the present invention, in which the road surface is broken. Fig.
Fig. 5 is a sectional view showing a state before use of the manhole housing, showing another embodiment of the manhole housing support constituting the present invention. Fig.
FIG. 6 is a sectional view of a manhole housing support according to another embodiment of the present invention, in which the manhole housing is supported. FIG.

The features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It must be interpreted in terms of meaning and concept.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. The same reference numerals are used for the same components, and only the different portions are described for the sake of clarity.

2 and 3, the manhole repair circular cut-breaking cutter of the present invention comprises a vertical bar 100 and a vertical bar 100 which is supported by the inner barrel of the manhole housing H A rotary support bar 300 installed at an upper end of the vertical bar 100 so as to be capable of idle rotation, a horizontal support bar 400 moving up and down along the rotary bar 300, And a cutting unit 500 for cutting the road surface around the manhole into a circular shape while ascending and descending along the main body 400.

The vertical bar 100 is located at the center of the manhole when the manhole is constructed. The manhole housing support 200 is coupled to the outer circumferential surface of the vertical bar 100 to be movable up and down. The manhole housing support 200 is supported by the inner wall surface of the manhole housing H while being lowered along the vertical bar 100 during manhole construction. The manhole housing support 200 includes a first guide block 210 fastened to the vertical bar 100, a second guide block 220 fastened to the outside of the first guide block 210 in an idle manner, A third guide block 240 coupled to the lower end of the vertical bar so as to be freely rotatable, a third guide block 240 coupled to the lower end of the vertical bar 100, And a support base 250 slidably coupled to the inside of the third guide block 240 while hinged to the lower end.

The link 230 and the support 250 are provided at a predetermined distance along the outer surfaces of the second guide block 220 and the third guide block 240. Accordingly, when the first guide block 210 rotates in one direction and descends along the vertical bar 100, the second guide block 220 descends together with the first guide block 210 and the second guide block 220 The links 230 provided on the upper surface of the manhole housing H transmit the moving force to the respective support rods 250 so that the support rods 250 are drawn out from the third guide block 240 simultaneously, .

A first handle 260 is fixed to the outer surface of the first guide block 210 to rotate the first guide block 210. In addition, an arc-shaped contact end 270 having the same curvature as that of the inner wall surface of the manhole housing H is formed at the end of each support base 250 so that the manhole housing H can easily be brought into close contact with the inner wall surface .

According to the present invention, a rotary screw rod 300 installed vertically is installed vertically on the upper end of the vertical bar 100. [ A horizontal plate is fixed to an upper end of the vertical bar 100 and a vertical guide pipe 310 for guiding a lower portion of the rotary bar 300 to the upper end of the vertical bar 100. [ Is fixed. In this case, the lower portion of the rotary screw rod 300 is inserted into the vertical guide tube 310 and is coupled to the idler shaft 300 so as to idle.

A horizontal support table 400, which ascends and descends along the rotary screw rod 300, is fastened to the rotary screw rod 300. A through hole is formed at the center of the horizontal support table 400. A nut 320 is fastened to a lower portion of the through hole through a through-hole. The upper portion of the rotating screw rod 300 protrudes to the upper portion of the horizontal support 400 through the through hole.

A horizontal support bar 330 is coupled to an upper portion of the rotary screw bar 300 protruded to the upper portion of the horizontal support bar 400 so as to idle and the rotary bar bar 300 is rotated The second handle 340 is horizontally installed so that the operator can easily operate the second handle 340. The second handle 340 is connected to the rotary screw rod 300 through the bevel gear 350. When the worker operates the second handle 340 to rotate the rotary screw rod 300, the horizontal support bar 330 and the second handle 340 rotate and rotate in accordance with the rotation direction of the rotary screw rod 300 And moves up and down together with the barb 300.

On the upper surface of the horizontal support member 400 is provided a guide member 360 for restricting the horizontal support bar 330 coupled to the rotary screw rod 300 so as to be freely rotatable along the rotary screw bar 300 Is installed. The guide member 360 is a member of the shape of a "? "Vertically installed on the horizontal support bar 400 so as to interfere with the horizontal support bar 330 or both sides of the second handle 340, And the second handle 340 interfere with the side of the horizontal support bar 330 or the second handle 340 when the rotary bar 300 is pivoted to the left or to the right. Therefore, the horizontal support bar 330 and the second handle 340 can move up and down very steadily without turning left and right. As a result, the connection state of the bevel gear 350 between the second handle 340 and the rotating screw rod 300 is always maintained stably, so that the power transmission from the second handle 340 is reliably transmitted to the rotary screw rod 300 .

A cutting unit 500 is installed at a lower portion of the horizontal support table 400 to cut the road surface around the manhole into a circular shape while moving along the horizontal support table 400. The cutting unit 500 includes a driving gear 510 installed on the bottom of the horizontal support 400 and a driven gear 520 installed on the bottom of the horizontal support 400 to rotate around the rotary bar 400, A plurality of extensible bars 530 radially provided at the lower end of the driven gear 520 and a cutting bit block 540 provided at an end of the extensible bar 530. The driving gear 510 is installed to receive a rotational force from a driving motor M provided on the upper portion of the horizontal support table 400. The bit block 540 scrapes the road surface of the manhole repair part and performs cutting simultaneously with shredding. The use of the bit block 540 as described above enables the contact area with the road surface to be small, so that even when the road surface is cut into a circular shape, the load on the road surface is very small and can be cut deeply.

The extensible bar 530 is divided into a fixed bar 531 fixed to the driven gear 520 and a movable bar 532 slidably inserted in the fixed bar 531, 531 and a fixing bolt 533 fastened to the moving bar 532 so that the cutting radius can be freely adjusted. In this case, a through hole through which the fixing bolt 533 passes is formed in the fixing bar 531, and a plurality of bolt holes are formed in the moving bar 532 at predetermined intervals corresponding to the through holes.

In addition, a scale may be displayed on the outer surface of the moving bar 532 so that the operator can visually check the degree of the drawing from the fixing bar 531.

A second vertical guide pipe 370 slidably movably fitted to the outside of the first vertical guide pipe 310 is coupled to the bottom of the horizontal support member 400 to stably move up and down the horizontal support member 400 . The second vertical guide tube 370 is firmly coupled to the horizontal support 400 with a bolt. A guide groove 371 is formed in a vertical direction on one side of the second vertical guide pipe 370 and an outer side of the first vertical guide pipe 310 A guide pin 372 protruding from the guide groove 371 is provided so that rotation of the second vertical guide pipe 370 along the rotary screw bar 300 by the guide pin 372 is restricted. The driven gear 520 is positioned on the outer side of the second vertical guide pipe 370 and the nut 320 of the horizontal support 400 is positioned on the inner side of the second vertical guide pipe 370.

Meanwhile, a shield plate 410 may be further provided on the edge of the horizontal support member 400 to isolate structures provided inside the horizontal support member 400 from the outside. The shield plate 410 is vertically coupled along the edge of the horizontal support 400 to form a partition wall that protects workers and citizens around the workplace from debris generated when the road surface is cut.

In addition, a water tank 420 may be installed on the upper portion of the horizontal support table 400. In this case, the water block 420 is provided with a bit block 540 for supplying water to the bit block 540 so as to cool the heat generated in the bit block 540 and remove the dust generated from the road surface in the course of cutting the road surface. A supply hose 430 is connected. The water tank 420 and the water supply hose 430 are connected to each other by a water valve 440 to control the amount of water to be supplied.

The thus constructed manway repair surface circular crushing cutter of the present invention is operated as follows.

3, the worker opens the manhole housing H by opening the lid of the manhole, and then the vertical rod 100 is positioned at the center of the manhole housing H, Place the cutter on the road.

When the vertical bar 100 is positioned at the center of the manhole housing H, if the manhole repair circular cut-breaking cutter of the present invention is placed on the road surface, the manhole housing support 200 is moved to the position of the manhole housing H While the lower end of each of the moving bars 532 (the bit block 540) is supported on the ground in a state where the moving bar 532 is pulled into the inside, the manhole repair circular crushing cutter of the present invention can stand up very steadily in a horizontal state with the road surface.

4, the second handle 340 is rotated to one side to lower the manhole housing support 250 until the manhole housing support 250 is positioned inside the manhole housing H .

When the manhole housing support 250 is positioned inside the manhole housing H, the first handle 260 is rotated to one side. When the first handle 260 rotates to one side, the first guide block 210 rotates in one direction and descends along the vertical bar 100. When the first guide block 210 descends, the second guide block 210 The link 230 hinged to the second guide block 220 and the second guide block 220 are lowered together with the first guide block 210 while the support 250 hinged to the lower end of the link 230 is inserted into the third guide block 240 to the inner wall surface of the manhole housing H. The operator stops the rotation of the second handle 340 when the close end 270 of the support 250 is firmly in contact with the inner wall surface of the manhole housing H. [ The vertical bar 100 is automatically aligned with the center of the manhole housing H in the process of firmly attaching the support 250 to the inner wall surface of the manhole housing H. [

In this state, the worker pulls the movable bar 532 from each fixing bar 531 of the cutting unit 500 to be cut and then fixes the movable bar 532 using the fixing bolt 533 531). At this time, a high vertical load acts on the movable bar 532 due to the horizontal support 400, so that the movable bar 532 can not be easily drawn out from the fixed bar 531. Thus, the second handle 340 is rotated to one side It is preferable that the movable bar 532 is pulled out while the horizontal support member 400 is raised. When the horizontal support 400 is lifted up, the rotary bar 300 descends with respect to the horizontal support 400. By the horizontal support 400 connected to the rotation bar 300, the second handle 340 The lower end of the rotary bar 300 descends from the horizontal support zone 250 by a height at which the rotary bar 300 descends, so that the rotary bar 300 can be continuously rotated using the second handle 340.

In addition, since the road surface of the manhole repair part has to be cut into a circle having a certain radius around the manhole housing H, the pullout distance of each zone should be the same. An operator can easily and accurately grasp how much the moving bar 532 is drawn from the fixing bar 531 by using a scale or an attached ruler displayed on the outer surface of the support table 250.

When the drive motor M is operated in this state, the cutting unit 500 installed on the driven gear 520 moves the driven gear 520, The bit block 540 installed at the end of the moving bar 532 starts to crush and cut the road surface of the manhole maintenance part.

At this time, since the support unit 250 is firmly supported by the inner wall surface of the manhole housing H, the cutting unit 500 can crush and cut the road surface of the manhole maintenance section with high stability .

The drive motor M is operated and the water supply valve 440 provided at the connection part between the water tank 420 and the water supply hose 430 is opened to discharge the water stored in the water tank 420 toward the bit block 540 When the water supply hose 430 is continuously supplied, a large amount of dust generated during the crushing and cutting of the road surface can be removed, and the heat block can be cooled at a high temperature in the bit block 540.

In addition, when the shield plate 410 is further provided at the edge of the rotary plate, it is possible to protect passers-by and workers who are traveling near the debris generated when the road is cut.

In order to increase the cutting depth of the road surface during the cutting operation of the road surface, the second handle 340 may be rotated to the other side to lower the cutting unit 500. That is, when the second handle 340 is rotated to one side, the vertical bar 100 supporting the rotating bar 300 can not be moved vertically by the manhole housing support 250, The horizontal supporting table 400 is lowered with the horizontal supporting table 400 as a reference and the rotating unit installed on the horizontal supporting table 400 descends accompanied with the horizontal supporting table 400, So that the cutting can be performed deeper.

At this time, the second vertical guide pipe 370 coupled to the horizontal support 400 is fitted to the outside of the first vertical guide pipe 310, and the guide pin 372 provided to the first vertical guide pipe 310 is inserted into the second The horizontal support table 400 does not flow right and left along the rotary screw bar 300 and stably and vertically descends because the horizontal support table 400 is inserted into the guide groove 371 formed in the vertical guide pipe 370.

When the rotary screw rod 300 protrudes to the upper portion of the horizontal support table 400, the second handle 340 is also rotated by the horizontal support table 400 connected to the rotary screw rod 300, So that the rotary screw 300 can be continuously rotated by using the second handle 340. In this case,

Since the road surface is crushed and cut by using the bit block 540, it is possible to obtain a precise cutting line L without using many expensive circular saw blades, which is very advantageous from the viewpoint of cost and also has a small resistance to the road surface It is very advantageous when cutting the road surface to a small radius or cutting it deeply.

5, the manhole housing support 600 of the present invention includes a fixed block 610 fixed to a lower end of a vertical bar, and a fixed block 610 fixed to the fixed block 610 so as to be accessible to the manhole housing H. [ A supporting end 630 fixed to an end of the horizontal bar 620 to be in close contact with an inner wall surface of the manhole housing H and a supporting end 630 fixed to an end of the horizontal bar 620, A protruding member 640 which is fixed to the outer circumferential surface of the horizontal or front rod 620 so as to be rotatable and a contact member 640 which is fitted to the horizontal or front rod 620 so as to be positioned between the protruding member 640 and the support end 630 And the tightening member 650 fastened to the horizontal or tapered rod 620 so as to be positioned between the projecting member 640 and the tightening member 650 to tightly tighten the tightening member 650 against the manhole housing H. [ And a nut 660.

6, when the protruding member 640 is rotated to one side in a state where the manhole housing support is positioned inside the manhole housing H, when the horizontal or tilting rod 620 rotates to one side, the fixing block 610 The supporting end 630 is firmly brought into close contact with the inner wall surface of the manhole housing H, When the tightening nut 660 is rotated to one side in a state where the support end 630 is in close contact with the inner wall surface of the manhole housing H, the tightening member 650 is firmly attached to the inner wall surface of the manhole housing H. In this case, if the contact member 650 supports the lower portion of the inner wall surface of the manhole housing H to which the support end 630 does not closely contact, the supporting force against the manhole housing H is doubled, It is possible to prevent the phenomenon that the manhole housing support 600 is moved upward from the manhole housing H due to the force generated during the process.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be takeners of ordinary skill in the art, And such variations are within the scope of the present invention.

100 ... Vertical rod 200,600 ... Manhole housing support
210 ... first guide block 220 ... second guide block
230 ... link 240 ... third guide block
250 ... support frame 260 ... first handle
300 ... Rotary barb 310 ... First vertical guide tube
330 ... horizontal support bar 340 ... second handle
360 ... guide member 370 ... second vertical guide tube
371 ... guide groove 372 ... guide pin
400 ... horizontal support 410 ... shield plate
420 ... water tank 430 ... water supply hose
500 ... cutting unit 510 ... driving gear
520 ... thrust gear 530 ... telescopic bar
540 ... bit block 610 ... fixed block
620 ... horizontal or spindle 630 ... supporting end
640 ... protruding member 650 ... tight contact member
660 ... tightening nut H ... manhole housing

Claims (9)

Vertical rods;
A manhole housing support installed on the vertical bar so as to be closely contacted to an inner wall surface of the manhole housing;
A rotating screw rope installed at the upper end of the vertical rod so as to idle;
And a cutting unit for cutting the road surface around the manhole into a circular shape while ascending and descending along a horizontal support member which is fastened to the rotary screw rod and ascends and descends along the rotary screw bar. The method according to claim 1,
A horizontal support bar is rotatably coupled to the outside of the rotary screw rod,
The horizontal support bar is provided with a second handle for rotating the rotary bar,
And a guide member for restricting the horizontal support bar from being pivotally moved is fixed to the upper surface of the horizontal support bar. The method according to claim 1,
Wherein the vertical bar is a vertical bar or a front bar,
The manhole housing support includes a first guide block fastened to a vertical bar, a second guide block hollowly fitted on the outside of the first guide block, a link hinged to an upper end of the second guide block, A third guide block coupled to the lower end of the vertical bar so as to be capable of idle rotation; a second guide block slidably coupled to the inside of the third guide block in a hinged state with the lower end of the link, And a support base which is drawn out from the third guide block and brought into close contact with the inner wall surface of the manhole housing. The method of claim 3,
And a first handle for rotating the first guide block is coupled to a side of the first guide block. The method according to claim 1,
The cutting unit
A driving gear provided on a bottom surface of the horizontal support;
A driven gear provided on a bottom surface of the horizontal support so as to rotate around a rotary screw rod;
A plurality of extensible bars provided radially at a lower end of the driven gear; And
And a cutting bit block provided at an end of the stretching bar. The method according to claim 1,
A first vertical guide pipe coupled to the upper end of the vertical bar so that the rotary screw can idly rotate is fixed,
A second vertical guide pipe slidably fitted outside the first vertical guide pipe is coupled to a bottom surface of the horizontal support,
A guide groove is formed at one side of the second vertical guide tube in a vertical direction,
And a guide pin protruding from the guide groove and restricting rotation of the second vertical guide pipe is coupled to the outer side of the first vertical guide pipe. The method according to claim 1,
And a shield plate for isolating structures provided inside the horizontal support from the outside at the edge of the horizontal support. 8. The method of claim 1 or 7,
A water tank is installed on the upper portion of the horizontal support,
Wherein the water tank is connected to a water supply hose capable of supplying water to a lower portion of the cutting unit. The method according to claim 1,
The manhole housing support
A fixing block fixed to a lower end of the vertical bar;
A horizontal tie bar secured to the fixed block so as to be accessible to the manhole housing;
A supporting end fixed to an end of the horizontal bar or spindle and closely contacting the inner wall surface of the manhole housing;
A protruding member fixed to the horizontal or the outer peripheral surface of the spindle so as to rotate the horizontal spindle;
A contact member which is fitted to the horizontal or tapered rod so as to be positioned between the projecting member and the support end; And
And a tightening nut fastened to the horizontal or torsion bar so as to be positioned between the protruding member and the tightening member and tightening the tightening member so that the tightening member can be closely attached to the manhole housing.
KR1020140141845A 2014-10-20 2014-10-20 Apparatus for circular drilling and cutting road surface to repair a manhole KR20160046396A (en)

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KR1020140141845A KR20160046396A (en) 2014-10-20 2014-10-20 Apparatus for circular drilling and cutting road surface to repair a manhole

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Application Number Priority Date Filing Date Title
KR1020140141845A KR20160046396A (en) 2014-10-20 2014-10-20 Apparatus for circular drilling and cutting road surface to repair a manhole

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KR20160046396A true KR20160046396A (en) 2016-04-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200011683A (en) * 2018-07-25 2020-02-04 주식회사 만엔지니어링 Road digging apparatus for repairing manhole
KR102132855B1 (en) * 2020-01-20 2020-07-10 윤배선 Manhole repair method using manhole housing lifting device
CN111764243A (en) * 2020-07-13 2020-10-13 朱敏佳 Small damaged circular repair cutting mechanism for road surface of road gymnasium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200011683A (en) * 2018-07-25 2020-02-04 주식회사 만엔지니어링 Road digging apparatus for repairing manhole
KR102132855B1 (en) * 2020-01-20 2020-07-10 윤배선 Manhole repair method using manhole housing lifting device
CN111764243A (en) * 2020-07-13 2020-10-13 朱敏佳 Small damaged circular repair cutting mechanism for road surface of road gymnasium

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