KR20160086063A

KR20160086063A - manhole for easy main body part extension

Info

Publication number: KR20160086063A
Application number: KR1020150003247A
Authority: KR
Inventors: 허원권
Original assignee: 주식회사 퍼팩트
Priority date: 2015-01-09
Filing date: 2015-01-09
Publication date: 2016-07-19

Abstract

The present invention relates to a manhole facilitating main body extension. The manhole facilitating main body extension comprises: a main body including a manhole body of a vertical pipe structure; a cover unit including a cover to close above the main body; and a base unit including a base plate to support the main body from below the main body. The main body comprises: an auxiliary manhole body which has a diameter equal to a diameter of the manhole body, and is connected to an upper portion or a lower portion of the manhole body; a packing band to enclose an outer surface of a connection portion of the manhole body and the auxiliary manhole body; a clamp mounted on the outside of the packing band; and an inner reinforcing ring which has a ring structure to come in contact with an inner surface of the connection portion, including a reinforcing flange protruding outwardly from a middle portion in a vertical direction. The inner reinforcing ring is inserted into the inner surface of the connection portion of the manhole body up to the reinforcing flange, and the auxiliary manhole body is inserted onto the outer surface of the remaining inner reinforcing ring; and then, the outer surface of the connection portion is enclosed by the packing band, and the clamp is mounted on the outside of the packing band to easily extend the main body if an entire length of the manhole body does not satisfy a required length of the main body. The connection portion is prevented from escaping or being misaligned by the clamp tightening from outside the connection portion and the inner reinforcing ring supporting from the inner surface of the connection portion. Lateral strength of the inner reinforcing ring is improved by the reinforcing flange, and a vertical escape of the inner reinforcing ring is prevented. Watertightness of the connection portion is improved by the packing band, and damage to the connection portion is prevented by strongly tightening the clamp.

Description

{Manhole for easy main body part extension}

The present invention relates to a manhole in which a main body portion can be easily extended. The manhole comprises a main body portion including a manhole body of a straight pipe structure, a lid portion including a lid for closing the main body portion, and a base portion including a base plate The main body includes a manhole auxiliary body connected to the manhole body at the same diameter as the manhole body, a packing band surrounding the outer surface of the connecting portion of the manhole body and the manhole auxiliary body, and a clamp band And an inner reinforcement ring having a ring structure in contact with the inner surface of the connecting portion and formed with a reinforcing flange protruding outward near the center of the height. When the length of the complete manhole body does not satisfy the required length of the body portion, It is easy to prevent the detachment of the connection part by the clamp which tightens from the outside of the connecting part and the inner reinforcing ring which is supported from the inside of the connecting part. Therefore, it is possible to prevent the inner reinforcement ring from being vertically detached while the strength of the inner reinforcement ring with respect to the side is improved by the reinforcing flange, and the water tightness of the connecting portion is improved by the packing band, .

Generally, a manhole is a structure having a straight pipe structure, a base plate at the bottom, a sewer pipe at the side, and a manhole cover at the top.

Here, sewer pipes are buried to treat storm water, sewage, and wastewater, and manholes are installed in the middle section of the sewer pipe for inspection, cleaning, ventilation, ventilation, joining, and branching in the sewer pipes.

The manhole installation method is mainly installed on the site by a method of assembling the components and the method of assembling each component. In the field installation method, a mold is installed in a place where a manhole is installed, a reinforced concrete is laid, a concrete is laid in the formwork, It is a method to install a manhole by roughly removing the formwork.

In the prefabricated building, the manhole body of the manhole, the inverter, the various components such as the top plate and the support frame are prefabricated, the components are assembled in the field, the concrete parts such as the base plate are made of concrete, And the like.

Among these prefabricated manholes, methods have been developed to easily extend the manhole body so that the length of the manhole body manufactured in advance to a predetermined length is shorter than the depth of the manhole to be installed in the field. For example, Korean Patent Registration No. 1125206 A manhole body having a pipe structure in which reinforcing ribs protruding at regular intervals in the longitudinal direction along the outer periphery are formed, and the fitting portion is formed on the upper portion, A manhole auxiliary member having a structure similar to that of the manhole main body except for the fitting portion and constituting a water milling outside the lower end thereof, A socket tube connecting the inlet and outlet pipes to the side of the manhole body; An invert forming the floor of a manhole; A base plate for supporting a manhole surrounding the lower portion of the manhole; A top plate surrounding the top of the manhole auxiliary body and receiving the support frame; A support frame supporting the manhole cover; The height of the manhole can be adjusted by cutting the manhole of the manhole according to the circumstances of the site. The manhole body, the invert, and the base plate are assembled and assembled beforehand , Manhole auxiliaries can be cut to the required length in the field and assembled together with other components, which can reduce the process in the field, and the manhole can be easily assembled by assembling the prefabricated components, 'Is posted.

For example, Korean Patent Registration No. 1263996, filed by the present inventor, discloses a method for manufacturing a large-diameter pvc sewer pipe having a reinforcing rib at an outer circumferential surface at regular intervals, A precast concrete lower foundation plate, in which a bottom plate for both the inverter and the manhole body, which is matched with the inner diameter of the manhole body, and a manhole body to which the inverter and bottom plate are assembled are easily seated and assembled, (S1) of preparing a manhole and a base plate together with a manhole main body and an inverter in a manufacturing method of a sewage manhole to which the sewer manhole is applied by providing the substructure of the sewage manhole composed of a composite material in a simple and sequential manner. A base plate installing step (S2) for installing a base plate at a place where the manhole is to be installed; An inverter assembling step (S3) of assembling a manhole main body and an inverter combined base plate; A manhole body assembling step (S4) of assembling the manhole body having undergone the inverter assembling step (S3) to the foundation board; An inner mortar filling step (S5) for filling mortar inside the base plate for both the inverter and the inverter; (S6), which is filled with mortar between the body of the manhole and the base plate, thereby improving the strength of the manhole, thereby reducing the damage and improving the assemblability of the manufacturing process and simplifying the process. A lower structure of a sewage manhole made of a composite material and capable of producing a manhole and a manufacturing method which can be manufactured by a short air, and integrating the manhole body with the base plate and the base plate for both the inverter and the inverter, thereby improving watertightness and corrosion resistance. 'Is posted.

1. Registration number / date 1011252060000 (March 2, 2012) 2. Registration number / date 1012639960000 (2013.05.07)

However, in the conventional method of extending the manhole body by forming the fitting portion to be fitted to the manhole body or the manhole auxiliary body such as the above-described " manhole for height adjustment and easy installation " In the conventional method in which the portion is fastened by clamping from the outside of the connecting portion, in the case where a strong vertical load is applied to the eccentric portion by a heavy vehicle passing over the manhole, There is no means, the manhole body and the manhole auxiliary body of the connecting portion are deformed and one of them is slammed into the other, which damages the manhole, which is a problem that buckles more easily than a manhole made of a single manhole body.

Also, in the conventional method of filling the mortar with the gap between the connecting parts of each structure as in the case of the 'bottom structure of sewage manhole made of a composite material and its manufacturing method', the air is lengthened according to mortar curing period.

With this problem, there is a need for a method which can easily connect the manhole body and the manhole auxiliary body, but does not break or deform at the connecting portion, and can reduce the period of time required for installation of the manhole.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a manhole structure, which comprises a main body including a manhole body of a straight pipe structure, a lid including a lid for closing the main body, The main body includes a manhole assisting body connected to the manhole body at the same diameter as the manhole body, a clamp for enclosing the outer side of the connecting portion of the manhole body and the manhole auxiliary body, and an inner reinforcement contacting the inner surface of the connecting portion of the manhole body and the manhole auxiliary body. It is easy to extend the main body part by inserting the inner reinforcement ring on the inner surface of the part to be connected of the manhole body up to the center, including the ring, inserting the manhole auxiliary body on the outer surface of the remaining inner reinforcement ring, , A clamp that tightens from the outside of the connecting part and an inner reinforcing ring which is supported from the inside of the connecting part to prevent the detachment or dislocation of the connecting part do.

The inner reinforcing ring is formed with a reinforcing flange protruding outward along the rim in the vicinity of the center of the height so that the strength of the inner reinforcing ring with respect to the lateral direction is improved by inserting the manhole body and the manhole aid into the upper and lower portions of the reinforcing flange, So that the inner reinforcement ring is prevented from being vertically demounted.

And a packing band surrounding the outer surface of the connecting portion of the manhole body and the manhole auxiliary body, wherein the clamp has a packing fixing groove which is shallower than the thickness of the packing band on the inner surface thereof, The watertightness of the connecting portion is improved, the packing band is prevented from being vertically detached, and the damage of the connecting portion due to the strong clamping of the clamp is prevented.

In addition, the base plate has a base outer wall protruding upward along the rim, the inner diameter of the base outer wall is formed to be larger than the outer diameter of the manhole body, the sulfur polymer mortar is filled between the main body and the base outer wall, By doing so, the manhole installation period is shortened by fast curing of sulfur polymer mortar.

As described above, according to the present invention, there is provided a clamp for clamping an outer side of a connecting portion, and an inner reinforcing ring having a ring structure in contact with an inner surface of the connecting portion and having a reinforcing flange protruded along an outer circumference at a center of height, So that the connecting portion is prevented from being separated or shifted by the inner reinforcing ring which is supported by the clamp which tightens at the outer side of the connecting portion and the inner reinforcing ring which is supported at the inner side of the connecting portion and also the strength of the inner reinforcing ring to the side is improved, There is an effect that the vertical raising and lowering of the reinforcing ring is prevented.

In addition, the clamp includes a packing band surrounding the outer surface of the connecting part. The clamp has a packing fixing groove which is shallower than the thickness of the packing band on the inner surface, thereby improving the watertightness of the connecting part, preventing the packing band from being vertically slipped, There is an effect that damage of the connecting portion due to tightening is prevented.

In addition, sulfur polymer mortar is filled between the main body portion and the base outer wall which are seated in the center of the base plate to form the base portion, thereby shortening the manhole installation period by fast curing of the sulfur polymer mortar.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side cross-sectional view of a manhole to which a main body part can be easily extended according to an example of the present invention; Fig.
2 is a perspective view of a connection part of a main body according to an example of the present invention;
FIG. 3 is a connection part assembly view of a body part according to an example of the present invention. FIG.
4 is a front view of a connection part of a main body according to an example of the present invention.
5 is a cross-sectional view taken along line AA 'of FIG. 4;
Fig. 6 is an enlarged view of Fig. 5B. Fig.
Figure 7 is a cross-sectional view of Figure 5 CC 'of a clamp and packing band according to another example of the present invention.

The manhole of the present invention is characterized in that when the manhole is divided into the main body portion, the lid portion and the base portion, the manhole body and the manhole auxiliary body, which are the components of the main body portion, The curing period is shortened. The main part, the base part, and the lid part are sequentially described as follows.

First, the main body 100 includes a manhole main body 110 of a cylindrical or rectangular tube, a manhole auxiliary body 120 having the same diameter as the manhole main body 110, a manhole body 110 and a manhole auxiliary body 120 (Not shown).

In this case, the manhole body 120 is the same as the manhole body 110, and the manhole body 110 provided in the installation place of the manhole 1 may be provided with the manhole body 110, Or formed and cut to a height corresponding to a height difference between the required height of the main body 100 and the height of the manhole body 110 and connected to the upper or lower side of the manhole body 110.

The connecting means 130 includes a clamp 131 to be fastened at the outside of the connecting portion, an inner reinforcing ring 132 to be supported at the inside of the connecting portion, and a packing band 133 to wrap the outside of the connecting portion. As shown in FIG. 2, it is preferable that the steel band type smoothly surrounds the connection portion between the manhole body 110 and the manhole auxiliary body 120. However, And a clamp type that can tighten the connection portion of the manhole auxiliary member 120 from the outside, such as a clamp type that can evenly tighten from the outside of the connection portion.

The steel band type clamp 131 shown in FIG. 2 is a steel band structure that surrounds a certain height of the manhole main body 110 and a certain height of the manhole auxiliary body 120 from the outside, And a clamp flange 131a having both ends in the longitudinal direction protruded vertically forward is formed in the clamp flange 131a. Bolt holes are drilled in the clamp flange 131a at regular intervals, and a clamp 131 And a bolt 131b and a nut 131c for passing through the respective bolt holes of the two clamp flanges 131a facing each other.

As shown in FIG. 7, the depth of the packing fixing groove 131d is set to be equal to the depth of the packing band 133a, It is preferable to form the groove with a depth corresponding to half the thickness of the packing band 133.

As shown in FIG. 3, the inner reinforcing ring 132 is a steel band ring structure that supports a certain height of the manhole main body 110 and a certain height of the manhole auxiliary body 120 in contact with the inner surface, And is preferably formed to have the same height as the height of the clamp 131 which is pressed by the force.

Here, the inner reinforcing ring 132 is formed with a reinforcing flange 132a protruding outward along the rim in the vicinity of the center of the height. As a result, as shown in FIG. 1, the 'a' The reinforcing flange 132a is preferably protruded by half the thickness of the packing band 133 from the thickness of the manhole body 110 or the thickness of the manhole body 110. [

The packing band 133 has a band structure of an elastic material such as rubber or urethane and is formed to be lower than the height of the clamp 131 and longer than the circumference of the manhole body 110, A part of the packing band 133 is overlapped.

1, the inner reinforcing ring 132 is inserted into the inner surface of the manhole body 110 such that the reinforcing flange 132a contacts the upper surface of the manhole body 110, The outer surface of the connecting portion is wrapped around the packing band 133 and wrapped around the outer surface clamp 131 of the packing band 133 so that the bolts 131b and 132b Nut 131c to constitute a main body 100 in which the manhole body 110 and the manhole auxiliary body 120 are connected.

When the clamp 131 has the packing fixing groove 131d, the outer surface of the packing band 133 is clamped and clamped by the clamp 131 so that the packing band 133 is inserted into the packing fixing groove 131d, The packing band 133 remaining on the side of the clamp flange 131a is wrapped around the outer surface of the connecting part while half of the packing band 133 is inserted into the groove 131d and then the clamp 131 can be fastened.

5, the clamp 131 tightens the connecting portion from the outermost side to exert a force in the center direction of the circle so that the manhole body 110 or the manhole auxiliary body 120 is clamped And the inner reinforcing ring 132 supports the connecting portion from the inner side so that the connecting portion of the manhole body 110 or the manhole auxiliary body 120 is not separated from the inner reinforcing ring 132 So as not to be shifted or separated.

The inner reinforcing ring 132 is formed so that the reinforcing flange 132a of the ring structure having a rectangular cross section in contact with the inner surface of the manhole body 110 and the manhole auxiliary member 120 is formed along the outer circumference at the center of the height of the inner reinforcing ring 132 The inner moment of the inner reinforcing ring 132 is increased by the reinforcing flange 132a so that the force applied to the center of the circle outside the circle of the inner reinforcing ring 132 The allowable stress on the inner surface of the manhole main body 110 is increased, which makes the rectangular cross-section that is in contact with the inner surface of the manhole body 110 thicker and has the same cross-sectional area as the ring structure of the a ' The inner momentum is smaller than the moment of inertia of the ring structure of the a '(a') section, and the inner reinforcement ring 132, in which the reinforcing flange 132a is formed, There is a maintainable feature.

The reinforcement flange 132a is formed between the manhole body 110 and the manhole auxiliary body 120 so that the inner reinforcement ring 132 flows downward from the inner surface of the manhole body 110 and the manhole auxiliary body 120 When the reinforcing flange 132a protrudes a little more than the thickness of the manhole body 110, the packing band wrapping around the connecting portion 110 133 is strongly tightened from the outside to prevent the separation of the packing band 133 and the watertightness.

In addition, the packing band 133 is not formed on the inner surface of the connecting portion and the outer surface of the connecting portion is wrapped, thereby improving the watertightness of the connecting portion and also preventing the connecting portion from being damaged by strong clamping of the clamp 131 Feature.

The base part 200 includes a base plate 210 and a bottom plate 220 and is supported under the main body part 100. The bottom part of the sewage manhole is made of the composite material of the present invention, The base outer wall 211 having an inner diameter larger than the outer diameter of the main body 100 is formed so as to protrude upward and the base outer wall 211 and the main body 100 are provided with a normal Of the sulfur polymer mortar 230 to form the foundation part 200.

The base plate 210 is preferably made of precast concrete but can be made of a precast type sulfur polymer. The bottom plate 220, which is fitted to the lower end of the main body 100, is opened downward, The inverter 221 is formed and the mortar is poured into the hole to fill the mortar so that the base plate 210 and the bottom plate 220 are integrated with each other, ), And the finishing pin 222a is inserted and fixed.

In addition, sulfur polymer mortar (230) is a sulfur modifier mixed with polymerized material mixed with specific monomers and mortar, and has a faster curing time than ordinary concrete mortar.

This sulfur polymer is produced by mixing sulfur with di-cyclopentadiene (DCPD), reacting and cooling the sulfur to modify the sulfur, and adding various fillers such as glass fiber to the sulfur polymer to improve the strength of the cured sulfur polymer concrete Or can be expressed earlier than the early strength.

1, a packing ring 223 and a bottom plate 220 are sandwiched between the lower end of the manhole body 110 and the position of the inverter 221 is arranged in consideration of the position of the coupling pipe 2 The base plate 220 and the manhole body 110 are fixed with pins and then the base plate 220 is placed on the center of the base plate 210. The mortar is then filled into the holes of the base plate 220, The mortar 230 is filled with a mortar between the manhole body 110 and the base outer wall 211 to complete the burial of the foundation 200 after the rapid curing.

As described above, the installation time of the manhole 1 is shortened by the simple assembly of the bases 200 and the fast curing of the sulfur polymer mortar 230.

Finally, the lid 300 includes a top plate 310 and a lid 320, and is a component of an access port that supports the main body 100 and can enter the main body 100, The configuration of the lid part 300 among the manholes whose height is adjustable and easy to install can be the same or similar.

The upper plate 310 is made of a synthetic resin so that the body 100 can be inserted into the body 100 by inserting the body 100 into the upper plate 310, It is preferable that the top plate 310 is made of precast concrete. However, the top plate 310 may be made of a precast type sulfur polymer.

The base unit 100, the base unit 200 and the lid unit 300 are mounted on the foundation plate 210 in a place where the manhole 1 is installed, The lid part 300 is seated on the main body part 100 after the main body part 100 and the structure of the base part 200 are installed on the base plate 210 to form the manhole 1. [

1: manhole 2: connection pipe 100:
110: manhole body 120: manhole auxiliary member 130: connecting means
131: Clamp 131a: Clamp flange 131b: Bolt
131c: nut 131d: packing fixing groove 132: inner reinforcing ring
132a: reinforcing flange 133: packing band 200: base part
210: base plate 211: base outer wall 220: base plate
221: inverter 222: finishing plate 222a: finishing pin
223: packing ring 230: sulfur polymer mortar 300: lid part
310: top plate 320: lid 330: ladder

Claims

A manhole comprising a main body portion including a manhole body of a straight pipe structure, a lid portion including a lid for closing the main body portion, and a base portion including a base plate supported under the main body portion,
In the main body,
A manhole auxiliary body connected to the manhole main body at the same diameter as the manhole main body;
A clamp which surrounds the outer side of the connecting portion between the manhole body and the manhole auxiliary body;
And an inner reinforcement ring contacting the inner surface of the connecting portion of the manhole body and the manhole auxiliary body,
The inner reinforcing ring is fitted to the inner surface of the portion to be connected to the manhole body to the vicinity of the center, the manhole auxiliary body is inserted into the outer surface of the remaining inner reinforcing ring, and then the clamp is fastened to the outside of the connecting portion,
Wherein the main body part is easily extended and the connecting part is prevented from being separated or displaced by a clamp which tightens at the outside of the connecting part and an inside reinforcing ring which is supported at the inside of the connecting part.

The method according to claim 1,
The inner reinforcing ring is formed with a reinforcing flange protruding outward along the rim in the vicinity of the center of the height,
By inserting the manhole body and the manhole auxiliary member above and below the reinforcing flange,
The strength of the inner reinforcement ring to the side is improved and the inner reinforcement ring is prevented from being vertically detached.

3. The method of claim 2,
And a packing band surrounding the outer surface of the connecting portion of the manhole body and the manhole auxiliary body;
The clamp has an inner surface formed with a packing fixing groove which is shallower than the thickness of the packing band,
The clamp is fastened in a state in which the packing band surrounding the outer surface of the connection part is fitted in the packing fixing groove,
The watertightness of the connecting portion is improved, the packing band is prevented from being vertically detached, and the connecting portion is prevented from being damaged by strong clamping of the clamp.

4. The method according to any one of claims 1 to 3,
The base plate has a base outer wall protruding upward along the rim, wherein an inner diameter of the base outer wall is formed larger than an outer diameter of the manhole body,
The sulfur polymer mortar is filled between the main body and the base outer wall seated in the center of the base plate to form the base portion,
Wherein the manhole installation period is shortened by fast curing of sulfur polymer mortar.