KR101836447B1 - Manhole improved ability of watertightness - Google Patents

Manhole improved ability of watertightness Download PDF

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Publication number
KR101836447B1
KR101836447B1 KR1020150187610A KR20150187610A KR101836447B1 KR 101836447 B1 KR101836447 B1 KR 101836447B1 KR 1020150187610 A KR1020150187610 A KR 1020150187610A KR 20150187610 A KR20150187610 A KR 20150187610A KR 101836447 B1 KR101836447 B1 KR 101836447B1
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KR
South Korea
Prior art keywords
hole
manhole
packing
connection
pipe
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KR1020150187610A
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Korean (ko)
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KR20170077586A (en
Inventor
김인숙
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김인숙
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Priority to KR1020150187610A priority Critical patent/KR101836447B1/en
Publication of KR20170077586A publication Critical patent/KR20170077586A/en
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Publication of KR101836447B1 publication Critical patent/KR101836447B1/en

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • E03F5/021—Connection of sewer pipes to manhole shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/10—Sealing by using sealing rings or sleeves only

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

The sealing pipe is connected to the connecting hole formed in the manhole so that the sealing packing gradually increases in diameter at the end of the connecting pipe connected to the connecting hole so that the connecting pipe is tightly coupled to the connecting hole of the manhole A manhole with improved watertightness is provided, which is constructed such that watertightness is ensured so that leakage does not occur at a joint portion between a wall of a manhole and a connection pipe.

Description

{MANHOLE IMPROVED ABILITY OF WATERTIGHTNESS}

The present invention relates to a manhole having improved watertightness. More particularly, the present invention relates to a manhole having improved watertightness, and more particularly, to a manhole having a plurality of hermetically sealed manholes each having a diameter gradually increased at an end portion of a connection pipe, And the sealing packing is tightly coupled to the inclined surface of the joint pipe. Thus, the watertightness of the manhole is improved so that the watertightness can be ensured without causing leakage at the joint between the wall of the manhole and the connection pipe.

Generally, a manhole is a collective term referring to a facility which allows people to enter and exit for maintenance and repair of various pipelines installed in the basement. These manholes are used for water supply for various kinds of sewage, life and industrial water, And install them at regular intervals in the middle.

In order to connect the connection pipe including the sewage pipe and the wastewater pipe to the side surface of the manhole, as shown in FIG. 1A, a cement or a cement is disposed between the outer periphery of the manhole and the manhole, Other sealing materials had to be applied separately.

However, this conventional technique can not precisely manufacture the connecting hole of the manhole so as to fit the outer diameter of the connecting pipe. Therefore, when the connecting pipe is coupled, the connecting hole can not be precisely coupled, There is a problem that water leakage occurs due to the gap formed between the two.

1B, when the connecting pipe 3 is connected to the connecting hole 2 of the manhole 1, the connecting pipe 3 is put on the fixing hole located outside the manhole 1, The end portion of the drain pipe 3 is fitted to the connection hole 2 of the manhole 1 and then the gap of the connection portion is sealed with the cement mortar 4 to prevent the occurrence of leakage.

As described above, in connecting the drain pipe to the connection hole of the manhole, the cement mortar which is sealed in the gap between the manholes faithfully exerts the function of blocking the leakage during a certain period of time in a hardened state. However, Or a vibration caused by a vehicle passing over the manhole is repetitively acted to generate a crack or to be damaged in severe cases. In addition, there is a problem that leakage occurs due to cracks in the hardened mortar portion when the manhole sinks due to settlement of the ground or the like.

Recently, when a connecting pipe is connected to a connecting hole of a manhole, a connecting pipe is placed on a fixing hole located outside the manhole, and the end of the connecting pipe is fitted to the connecting hole of the manhole. Then, And sealed with a packing to prevent leakage of water.

However, when the connecting pipe is connected to the connecting hole of the manhole, the airtight packing which seals the gap of the connecting hole exhibits elasticity and flexibility within an extremely limited range, and when the sectional area of the airtight packing is larger than the connecting hole clearance When the cross-sectional area of the airtight packing is smaller than the clearance of the connecting hole, the airtight packing is not tightly inserted into the clearance of the connecting hole, there was.

In addition, even if the size of the packing is precisely adjusted, it is difficult to carry out the work because the packing of different sizes must be provided according to the standard of the connecting pipe.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and a device for connecting a connecting pipe to a connecting hole formed in a manhole, To provide a manhole with an improved watertightness, which is constructed such that seals are tightly coupled to an inclined surface of a joint pipe so that water is not leaked at a joint between a wall of a manhole and a connection tube, .

The above and other objects can be accomplished by the provision of an apparatus and a method for controlling the operation of the apparatus, comprising the steps of: forming at least one connection hole on an outer surface of a side wall of a vehicle; forming an annular engagement protrusion on an inner end of the connection hole; A manhole body having an inclined surface with an increased diameter toward the outside and an annular receiving groove formed outside the inclined surface; A connection pipe inserted into the connection hole and having an end which is in close contact with the engagement protrusion; And a plurality of hermetic packings tightly coupled to the outer surface of the one end of the connection tube, wherein the hermetic packing is arranged in such a manner that the diameter of the hermetic packing gradually increases gradually toward the outer side from the end of the latching jaw, An inclined packing body interposed therebetween; A plurality of insertion holes arranged at predetermined angles along the circumferential direction on the receiving groove, one end of which is fixed to the inside of the manhole body and the other end is protruded outward on the bottom surface of the receiving groove; And a pressure plate which is formed at the center thereof with a through hole to be inserted into the connection pipe and which is formed at an outer side of the through hole with a fitting hole into which the corresponding male screw is inserted along the circumferential direction, Wherein when the nut is fastened, the pressure plate pushes the rear surface of the inclined packing body, and the inclined packing body composed of a plurality of the sealing packing is compressed, and the gasket is tightly held between the connection tube and the inclined surface. Can be achieved by providing improved manholes.

In this case, the wedge-shaped wedge grooves are formed in the inclined surface in a multi-stage manner and are formed in a reverse direction to the direction of insertion of the connection pipe. The sealing packing is made of a water expandable material, And the wedge groove is inserted into the wedge groove.

A through-hole is formed at the center of the through-hole so that the through-hole is formed at the center of the through-hole. The front surface of the through- And a coupling plate having a coupling hole for fitting the coupling male thread, respectively, in a circumferential direction outside the through hole, the coupling plate being interposed between the pressing plate and the support plate, And when the nut is fastened to the coupling male screw at the rear side of the support plate, the support plate is moved toward the pressing plate so as to press the spring to push the central portion of the support plate .

An annular pressing flange is formed on the rear surface of the pressing plate, and a receiving groove is formed in front of the receiving groove to expose the receiving groove. The pressing groove is coupled to the rear side of the pressing plate, And a plurality of fastening holes are formed in the fastening flange at a predetermined angle along the circumferential direction, and a plurality of fastening holes are formed in the circumferential direction outside the fastening holes, A bolt hole is formed in the bolt hole so that the bolt hole is fitted in the bolt hole, and when the nut is fastened to the bolt joint, the bolt hole is received and fixed by the mounting groove, and the bolt hole is elastically pressed Wherein the elastic pressing part has a male screw part which is fastened to the fastening hole on the outer surface thereof, A pressing rod which is formed to be received in the chamber through the charging hole and in which a supporting piece is integrally formed at an upper end and a pressing piece is formed at the lower end in close contact with the pressing flange; And a pressing spring interposed between the upper surface of the chamber and the support plate.

In the manhole having improved watertightness according to the present invention, the connecting pipe is inserted into the connecting hole formed in the manhole, and the sealing pipe is gradually coupled to the end of the connecting pipe connected to the connecting hole, There is an effect that the water tightness can be ensured in the connecting portion of the manhole without causing leakage at the joint portion between the wall of the manhole and the connection pipe.

FIGS. 1A and 1B are views showing a connection structure between a conventional manhole and a connection pipe,
2 is an exploded perspective view of a manhole with improved watertightness according to the present invention,
3 is an exploded sectional view of a watertight manhole according to the present invention,
FIGS. 4 to 6 are views for explaining a process of connecting a connection pipe to a manhole according to the present invention;
FIGS. 7 and 8 are views showing another preferred embodiment of a watertight manhole according to the present invention;
9 and 10 show another preferred embodiment of a watertight improved manhole according to the present invention.

Hereinafter, a manhole with improved watertightness according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a sectional view of a manhole with improved watertightness according to the present invention, and FIGS. 4 to 6 illustrate a manhole according to an embodiment of the present invention, And FIG.

Referring to the drawings, a manhole having improved watertightness according to the present invention includes a manhole body 100, a connection pipe 200, an inclined packing body 300, a coupling male thread 400, and a pressure plate 500.

The manhole body 100 is composed of a side wall 101 and a bottom plate 102 and is opened at an upper portion thereof, and the opened upper portion is closed by a manhole cover (not shown).

At least one coupling hole 110 is formed on the outer surface of the manhole body side wall 101. An annular coupling protrusion 120 is formed on the inner end of the coupling hole 110, And an annular receiving groove 140 is formed on the outer side of the inclined surface 130. The annular receiving groove 140 is formed on the outer side of the inclined surface 130,

The connection pipe 200 is inserted into the connection hole 110, and an end portion of the connection pipe 200 is closely attached to the engagement protrusion 120. It is needless to say that the connection pipe 200 can be a variety of pipes such as sewage pipes, wastewater pipes, water pipes, electricity and communication line protection pipes.

The inclined packing body 300 is composed of a plurality of hermetic packings 310, 320, 330, and 340 tightly coupled to the outer surface of one end of the connection pipe 200. The sealing packings 310, 320, 330 and 340 are disposed gradually inwardly and gradually in diameter from the end of the stopping protrusion 120 to the outside of the stopping protrusion 120 and interposed between the connecting pipe 200 and the inclined surface 130 of the connection hole. That is, since the diameter of the hermetic packing 310, 320, 330, and 340 is gradually increased gradually, the diameter of the hermetic closure 310 disposed inside is small and the diameter of the hermetic closure 340 is increased toward the outer side , And the inclined surface (130). Accordingly, the sealed packing 310 is coupled to one end of the connection pipe 200, and can be easily inserted into the connection hole 110.

The plurality of coupling male threads 400 are arranged at predetermined angles along the circumferential direction on the receiving groove 140. One end of the combined male screw 400 is fixed to the inside of the manhole body 100 and the other end is protruded outward on the bottom surface of the receiving groove 140.

A through hole 510 is formed at the center of the pressure plate 500 to be inserted into the connection pipe 200 and a through hole 510 is formed in the outer side of the through hole 510, (520) is formed and received in the receiving groove (140). That is, when the nut N is fastened to the coupling male thread 400 from the outside of the pressure plate 500, the pressure plate 500 is compressed by the inclined packing bodies 340 composed of the warp packing bodies 310, 320, (200) and the inclined surface (130) so that the airtightness is maintained.

The process and operation / effect of connecting the connection pipe to the manhole with improved watertightness according to the present invention constructed as above will be described.

4, the sealing packings 310, 320, 330 and 340 are fitted to the outer surface of the one end of the connecting pipe 200 so that the sealing packings 310, 320, 330 and 340 are sequentially gradually increased in diameter toward the outside of the connecting pipe 200 Respectively. Then, the connecting pipe 200 to which the inclined packing body 300 is coupled is inserted into the connecting hole 110.

The inclined packing 300 is interposed between the connecting tube 200 and the inclined surface 130 of the connecting hole while the end of the connecting tube 200 is in close contact with the engaging step 120. The inclined packing body 300 can be easily inserted into the connection hole 110 because the diameter of the inside of the inclined packing body 300 and the inclined surface 130 is small and the diameter of the inclined packing body 300 increases toward the outside . At this time, the inclined packing body 300 interposed between the connecting tube 200 and the inclined surface 130 of the connection hole has a microgap G formed between the sealing packings 310, 320, 330, 340.

5, the fitting hole 520 of the pressure plate 500 is fitted to the coupling male thread 400 in a state where the pressure plate 500 is fitted in the coupling tube 200. As shown in FIG.

6, the nut (N) is fastened to the coupling male thread (400) at the outer side of the pressure plate (500). Then, the pressure plate 500 pushes the rear surface of the inclined packing body 300, and the inclined packing bodies 300 composed of the plurality of the sealing packing 310, 320, 330, and 340 are compressed, The airtightness of the connection hole 110 is maintained while being closely attached between the connection pipe 200 and the inclined surface 130. Since the inclined packing 300 is constructed such that a plurality of hermetic packing 310, 320, 330 and 340 are divided and the interval of the connection hole 110 can be tightened by pressing the pressure plate, It is advantageous that it can be sealed.

7, wedge-shaped wedge grooves 131 are formed in the inclined surface 130 in a multi-stage manner and formed in a direction opposite to the direction in which the connection pipe 200 is inserted, It is preferable that the hermetic packing 310, 320, 330 and 340 is made of a water-swellable material and is introduced into the wedge groove 130 while being expanded between the connection pipe 200 and the inclined surface 130 by the introduced water. Accordingly, since the sealing packing 310, 320, 330, 340 made of a water-swellable material is coupled to the wedge groove 131 formed in the direction opposite to the direction in which the connection pipe 200 is inserted, the connection pipe is separated from the connection hole 200 Since the sealing packings 310, 320, 330 and 340 adhere to the wedge-shaped air grooves 131, the airtightness of the connection holes 130 is more firmly maintained.

According to the present invention, it is possible to prevent the inclined packing body 300 from being pushed to the rear side by reinforcing the rear surface of the pressure plate 500 pressingly supporting the rear surface of the inclined packing body 300, Of the first embodiment.

9, a front fitting jaw 530 is formed on the rear surface of the pressure plate 500 along the periphery of the through hole 510, as shown in FIG. 9, to support the rear surface of the pressure plate 500. As shown in FIG. do.

The support plate 600 is coupled to the rear side of the pressure plate 500. Specifically, the support plate 600 is formed with a through hole 610 that is fitted in the coupling tube 200 at the center, a rear fitting step 620 is formed along the periphery of the through hole 610, A coupling hole 630 through which the coupling male thread 400 is fitted is formed on the outer side of the through hole 610 along the circumferential direction. A spring (S) is interposed between the pressure plate (500) and the support plate (600). One end of the spring S is held by the front fitting stop 530 and the other end of the spring S is fitted into the rear fitting stop 620 and supported.

When the nut N is fastened to the coupling male screw 400 from the rear side of the support plate 600, the support plate 600 is moved toward the pressing plate 500 to press the spring S, So that the spring S pushes the central portion of the support plate 600. Therefore, since the spring S continuously presses the rear surface of the pressure plate 500 pressingly supporting the inclined packing body 300, the inclined packing body 300 is prevented from being pushed backward, and the inclined packing body 300 There is an advantage that a firmly adhered state is maintained inside the connection hole 110. [

10, an annular pressing flange 540 is formed on the rear surface of the pressure plate 500 along the periphery of the through hole 510, as shown in FIG. 10, as another embodiment for reinforcing and supporting the rear surface of the pressure plate 500. [ . In addition, a seating groove 150, which is wider than the receiving groove 140, is formed in front of the receiving groove 140.

The support cover 700 is coupled to the rear side of the pressure plate 500. Specifically, the support cover 700 has a through hole 710 formed at the center thereof to be inserted into the connection pipe 200, and a coupling flange 720 is formed at a front surface thereof along the periphery of the through hole 710. In the coupling flange 720, a plurality of fastening holes 730 are formed at an angle along the circumferential direction. A bolt hole 740 is formed in the insertion hole 730 in the circumferential direction so as to fit the coupling male screw 400. When the nut N is fastened to the coupling male screw 400, And the support cover 700 is received and fixed in the groove 720.

In the fastening hole 730, elastic pressing members 800 for elastically pressing the pressing flange 540 are fastened together. Specifically, the elastic pressing member 800 includes a chamber 810 formed with a male screw portion 811 to be fastened to the fastening hole 730 on the outer surface thereof, a bottom 812 formed on the bottom surface thereof, A presser bar 820 which is formed to be received in the chamber 810 through the presser plate 810 and has a support piece 821 integrally formed at an upper end thereof and a presser member 822 formed at the lower end thereof in close contact with the presser flange 540, And a pressing spring 821 interposed between the upper surface of the chamber 810 and the supporting piece 821 in the chamber 810.

With this configuration, when the chamber 810 is fastened to the fastening hole 730 in a state where the support cover 700 is received and fixed in the seating groove 150, the pressing piece 822 is pressed against the spring 830 So as to push the pressurizing flange 540 in a state in which it is in close contact with the pressurizing flange 540. Therefore, since the rear surface of the pressure plate 500 pressingly supporting the rear surface of the oblique packing body 300 is continuously pressed through the pressing piece 822 supported by the spring 830, the oblique packing body 300 is moved backward It is advantageous that the inclined packing body 300 can be maintained in a firmly adhered state inside the connection hole 130. [0050]

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who can afford it will know.

100: Manhole body 200: Connector
200: inclined packing body 400:
500: pressure plate

Claims (4)

Wherein at least one connection hole is formed on an outer surface of the side wall and an annular engagement protrusion is formed at an inner end of the connection hole, and the outer diameter of the engagement protrusion A manhole body on which an inclined surface to be expanded is formed and an annular receiving groove is formed on an outer side of the inclined surface; A connection pipe inserted into the connection hole and having an end which is in close contact with the engagement protrusion; And a plurality of hermetic packings tightly coupled to the outer surface of the one end of the connection tube, wherein the hermetic packing is arranged in such a manner that the diameter of the hermetic packing gradually increases gradually toward the outer side from the end of the latching jaw, An inclined packing body interposed therebetween; A plurality of insertion holes arranged at predetermined angles along the circumferential direction on the receiving groove, one end of which is fixed to the inside of the manhole body and the other end is protruded outward on the bottom surface of the receiving groove; And a pressure plate formed with a through hole to be inserted into the coupling pipe at the center and having an insertion hole formed at an outer side of the through hole so as to fit the coupling male thread in the circumferential direction, When the nut is fastened, the pressure plate pushes the rear surface of the inclined packing body, and the inclined packing body made of a plurality of the sealing packing is compressed, and the gasket is tightly held between the connecting tube and the inclined surface,
And the sealing packing is formed of a water-swellable material, and is expanded between the connecting pipe and the inclined surface by the inflow water, and the wedge- And is inserted into the wedge groove,
A through-hole is formed in the rear surface of the pressure plate along a periphery of the through-hole and is coupled to the rear side of the pressure plate. A through hole is formed at the center of the through- A support plate having a fitting jaw formed therein and having a coupling hole in which the coupling male thread is inserted along the circumferential direction to the outside of the through hole is formed and interposed between the supporting plate and the pressing plate, And when the nut is fastened to the engagement male screw at the rear side of the support plate, the support plate is moved toward the press plate and presses the spring to push the center portion of the support plate to support the nut A manhole with improved watertightness. delete delete delete
KR1020150187610A 2015-12-28 2015-12-28 Manhole improved ability of watertightness KR101836447B1 (en)

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KR1020150187610A KR101836447B1 (en) 2015-12-28 2015-12-28 Manhole improved ability of watertightness

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Application Number Priority Date Filing Date Title
KR1020150187610A KR101836447B1 (en) 2015-12-28 2015-12-28 Manhole improved ability of watertightness

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KR20170077586A KR20170077586A (en) 2017-07-06
KR101836447B1 true KR101836447B1 (en) 2018-03-08

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KR102368378B1 (en) * 2020-06-19 2022-02-25 유성원 Upper and lower incision hygiene mask

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000154583A (en) * 1998-11-20 2000-06-06 Nippon Zenith Pipe Co Ltd Arched culvert
KR100817812B1 (en) * 2008-01-07 2008-03-31 (주) 대화레이져 Joint for manhole

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000154583A (en) * 1998-11-20 2000-06-06 Nippon Zenith Pipe Co Ltd Arched culvert
KR100817812B1 (en) * 2008-01-07 2008-03-31 (주) 대화레이져 Joint for manhole

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