KR20220158974A - Manufacturing method for concrete manhole and concrete manhole manufactured by this method and construction of this manhole - Google Patents

Abstract

Disclosed are a method for manufacturing a concrete manhole, a manhole manufactured by the method, and a manhole structure constructed with the manhole. The method for manufacturing a concrete manhole having a connector to connect sewers comprises: a step a) of preparing an inner form and an outer form for forming a circular or angular manhole, and placing the inner and outer forms on an upper surface of a floor form; a step b) of preparing a connector module by assembling connector components; a step c) of inserting the connector module between the inner and outer forms and positioning the connector module in a set position by using a position fixing jig; a step d) of pouring concrete between the inner and outer forms and separating the position fixing jig after completion of pouring; and a step e) of completing the concrete manhole by removing the inner form, the outer form, and the floor form after the concrete poured between the inner and outer forms is completely cured. According to the present invention, it is possible to manufacture a manhole of good quality.

Description

Concrete manhole manufacturing method, manhole manufactured by this manufacturing method, and construction structure of this manhole {Manufacturing method for concrete manhole and concrete manhole manufactured by this method and construction of this manhole}

The present invention relates to a concrete manhole manufacturing method for manufacturing a concrete manhole, a manhole manufactured by the manufacturing method, and a construction structure of the manhole, and more particularly, without forming separate perforated holes in the inner / outer formwork. It is possible to manufacture a manhole by easily setting the position of the connector module using a position fixing jig without using a position fixing jig, so that there is no need to use a separate formwork depending on the size or installation location of the connector, reducing the waste of formwork and using one formwork It relates to a concrete manhole manufacturing method enabling manhole manufacturing, a manhole manufactured by the manufacturing method, and a construction structure of the manhole.

Concrete manhole is a facility that allows people to enter and exit for the maintenance and repair of various pipelines installed underground. It is built in the middle of the conduit.

A main pipe such as a sewage pipe or a waste water pipe is connected to the concrete manhole, and for this purpose, a connector is provided at the lower opening (connector hole) of the manhole to connect to the main pipe.

In the concrete manhole equipped with such a connector, the inner formwork and the outer formwork are spaced apart, the connector hole formwork equipped with the connector between them is placed in the design position, and then concrete is poured between the inner formwork and the outer formwork. After a certain period of time, the concrete manhole equipped with the connector is completed by removing the inner formwork and the outer formwork.

However, in the conventional manufacturing of concrete manholes, a perforated hole is formed in the inner formwork or the outer formwork to fix the connector hole formwork to a predetermined position in the design between the inner formwork and the outer formwork, and the connector hole formwork is welded or welded to the hole. After fixing the position by means of bolting, etc., concrete was poured.

Therefore, in order to manufacture manholes with different connector installation locations or diameter sizes, prepare a new inner or outer formwork, and prepare a new outer formwork or inner formwork with a perforated hole according to the size or installation position of the connector to be manufactured. had to form

That is, in the existing concrete manhole manufacturing method, when manufacturing various types of concrete manholes with different connector installation locations or diameter sizes, the inner formwork or outer formwork cannot be reused, and the previous forms are discarded and the inner formwork or outer formwork suitable for each type is used. It is difficult to lower the unit cost of concrete manholes as the overall manufacturing time for concrete manholes increases due to the need to prepare new forms for each form, which requires a lot of material cost for formwork preparation and a lot of work time required for formwork preparation. there was

Registered Patent No. 10-0849527 Patent Publication No. 10-2008-0058295 Registered Patent No. 10-0749823 Registration room No. 20-0386868 Patent Publication No. 10-2014-0122061

The present invention was invented to solve the conventional problems as described above, and manufactures manholes by easily positioning the connector module using a position fixing jig without forming separate perforated holes in the inner/outer formwork. A concrete manhole manufacturing method that enables manholes of various designs to be manufactured with one formwork without the need to use a separate formwork depending on the size or installation location of the connector, the manhole manufactured by this manufacturing method, and the construction structure of the manhole It aims to provide

In addition, the present invention not only enables precise adjustment of the arrangement position of the connector module in the horizontal and height directions by using the position fixing jig, but also is configured to more easily separate and combine from the formwork and the connector module, so that the position fixing jig It is an object of the present invention to provide a method for manufacturing a concrete manhole that can be assembled and separated more easily, a manhole manufactured by the manufacturing method, and a construction structure of the manhole.

However, the object of the present invention is not limited thereto, and even if not explicitly mentioned, the purpose or effect that can be grasped from the solution or embodiment of the problem is also included therein, of course.

The concrete manhole manufacturing method of the present invention for achieving the above object is a concrete manhole manufacturing method for manufacturing a concrete manhole having a connector for connecting a sewage main, a) an inner formwork for forming a circular or prismatic manhole and preparing an outer formwork, and placing the inner formwork and the outer formwork on top of the floor formwork; b) preparing a connector module by assembling connector components; c) inserting the connector module between the inner formwork and the outer formwork, and positioning the connector module in a set position using a position fixing jig; d) pouring concrete between the inner formwork and the outer formwork, and separating the position fixing jig after completion of pouring; e) completing the concrete manhole by removing the inner formwork, the outer formwork, and the floor formwork after curing of the concrete poured between the inner formwork and the outer formwork is completed.

The position fixing jig is coupled to a protruding piece formed outwardly at the top of the outer formwork and installed to protrude inward from the top of the outer formwork, and a support panel having a high fixing hole formed at a side end; a coupling tool for pinching and fixing the support panel and the protruding piece; The lower end is detachably coupled to the connector module, and the upper end penetrates the height fixing hole, adjusts its position up and down on the support panel, and fixes the connector module in a set position between the inner formwork and the outer formwork by a hanging method. It may be configured to include; a connector positioning bar to do.

The connector positioning bar is made of a rod shape and is formed in the form of a computerized bolt having external circumferential male threads, and a positioning bar body to which the connector module is detachably coupled to a lower end; It is configured in the form of a nut, is screwed to the positioning bar body, is configured to move vertically, and is engaged in the height fixing hole to fix the connector module to the set position.

The step c) may include coupling the support panel to the protruding piece using the coupling tool; coupling a lower end of the positioning bar body to the connector module and inserting the connector module between the inner and outer dies; In a state where the upper end of the positioning bar body is passed through the height fixing hole, the holding member is screwed to the upper end of the positioning bar main body to adjust the height so that the connector module is caught in the height fixing hole, thereby placing the connector module in the setting position It may be configured to include; step of positioning to.

The connector module is made of a synthetic resin material, and the connector body is disposed so that the distance adjustment end and the outer end are in close contact between the inner formwork and the outer formwork, respectively, and is connected to the sewer main pipe during manhole construction, and is soft and elastic A connector connection pipe made of rubber material, coupled to the connector body, and configured such that a distal end protrudes outward from the connector body, and is inserted in a state in which the distal end is folded inward when inserted between the inner and outer dies; It can be configured to include.

In addition, the manhole construction structure of the present invention is a manhole construction structure in which a concrete manhole equipped with a connector is constructed in a connector hole formed on one side, in a state where the end of the sewage main pipe is inserted into the end of the connector and connected to the connector By wrapping and tightening the distal end with a banding coupling unit, the distal end of the connector is configured to be tightly coupled to the sewage main pipe, and the bending coupling unit is made of a plate having a predetermined length and surrounds the distal end of the connector; It consists of a pair of connecting bars, bolts and nuts that are fixed to both ends of the bending body plate and disposed side by side, and are connected to each other to connect the pair of connecting bars to each other so that the pair of connecting bars are fastened so as to get closer to the bending body plate. It is characterized in that it comprises a; tightening means for pressing and fixing the distal end of the connector.

The bending body plate portion has a first fixing part at both ends, and a second fixing part at a predetermined distance from the first fixing part, and the first fixing part is coupled to the second fixing part to achieve the bending A pair of hooks are formed on both sides of the main body plate, the pair of connecting bars are inserted into the pair of hooks, and the tightening means passes through the middle part of the length of each of the pair of connecting bars. A bolt passage hole to be fastened is formed, and an exposure hole through which the bolt passage hole is exposed is formed in each of the pair of rings, so that the tightening means is inserted into the bolt passage hole through the exposure hole.

According to the above, the present invention does not need to form a perforated hole for fixing the connector module to the inner formwork or the outer formwork, and each separately according to the size or installation position of the connector module installed in the concrete manhole using a position fixing jig. Since it is possible to manufacture a concrete manhole while reusing one inner formwork and an outer formwork without the need to provide an inner formwork and an outer formwork, the cost of materials for formwork and the time required for formwork production can be significantly reduced, thereby lowering the unit cost of the product.

In addition, since the connector module is not removed, labor costs can be reduced, and losses due to discarding of the formwork can be reduced, thereby improving productivity.

In addition, since the present invention can position the connector module more easily using a position fixing jig, the positioning of the connector module can be efficiently performed and the positioning of the connector module can be more precisely adjusted, resulting in higher quality. There is an effect that can manufacture a manhole.

1 is a block diagram showing a method for manufacturing a concrete manhole according to an embodiment of the present invention;
2 is a view for explaining a method for manufacturing a concrete manhole according to an embodiment of the present invention;
3 is an enlarged view showing part A of FIG. 2 by enlarging it;
4 is a plan view of a state in which the connector module is disposed at a set position between the inner and outer forms in the concrete manhole manufacturing method of the present invention;
5 is a view showing the configuration of the support panel of the position fixing jig used in the concrete manhole manufacturing method of the present invention,
6 and 7 are coplanar views for explaining the connector assembly process of the present invention,
8 is a plan view showing a state in which the support panel of the position fixing jig is disposed on top of the outer formwork in the concrete manhole manufacturing method of the present invention;
9 is a cross-sectional view showing a construction structure of a concrete manhole constructed by connecting a concrete manhole manufactured by the concrete manhole manufacturing method according to an embodiment of the present invention and a sewage main,
10 is an enlarged view showing part B of FIG. 9 by enlarging it;
11 is a view showing the configuration of the bending body plate portion of the bending coupling unit of FIG. 9;
Figure 12 is a longitudinal cross-sectional view showing the coupling structure of the bending coupling unit of Figure 9;

The above objects, other objects, features and advantages of the present invention will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

In this specification, when an element is referred to as being on another element, it means that it may be directly formed on the other element or a third element may be interposed therebetween. Also, in the drawings, the thickness of components is exaggerated for effective description of technical content.

Embodiments described in this specification will be described with reference to cross-sectional views and/or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content. Accordingly, the shape of the illustrative drawings may be modified due to manufacturing techniques and/or tolerances. Therefore, embodiments of the present invention are not limited to the specific shapes shown, but also include changes in shapes generated according to manufacturing processes. For example, an etched region shown at right angles may be round or have a predetermined curvature. Accordingly, the regions illustrated in the drawings have attributes, and the shapes of the regions illustrated in the drawings are for exemplifying a specific form of a region of an element and are not intended to limit the scope of the invention. Although terms such as first and second are used to describe various components in various embodiments of the present specification, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Embodiments described and illustrated herein also include complementary embodiments thereof.

Terms used in this specification are for describing embodiments, and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprises' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, various specific contents are prepared to more specifically describe the invention and aid understanding. However, a reader having knowledge in this field to the extent of being able to understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not greatly related to the invention are not described in order to prevent confusion for no particular reason in explaining the present invention.

Hereinafter, with reference to FIGS. 1 to 8, a method of manufacturing a concrete manhole (200, see FIG. 9) according to an embodiment of the present invention will be described.

The concrete manhole manufacturing method of the present invention is a method for manufacturing a prefabricated concrete manhole having a connector module 100 formed to penetrate the lower part of the concrete manhole 200. Here, the connector module 100 is a part constructed so that the sewage main pipe 210 is connected and connected during the construction of the concrete manhole.

The concrete manhole manufacturing method of the present invention includes a formwork arrangement step (s10), a connector module assembly step (s20), a connector module positioning step (s30), a concrete pouring and position fixing jig separation step (s40), concrete curing and formwork removal steps (s50).

In the formwork arrangement step (s10), the floor formwork 10 is placed on the ground at predetermined intervals, the inner formwork 20 made of a cup shape is placed upside down on the upper surface of the floor formwork 10, and the inner formwork 20 ) It is configured to place the outer formwork 30 made of an open top and bottom tubular body on the upper surface of the floor formwork 10 so as to surround the outside of the formwork

The bottom of the floor formwork 10 is made of an H-beam, and spacing members 12 may be installed to support the floor formwork 10 spaced apart from the ground at predetermined intervals.

The inner formwork 20 has an outer circumferential surface inclined at a predetermined angle up and down so that the diameter decreases upward, so that the inner formwork 20 can be easily separated from the completed concrete manhole.

In the present invention, the inner formwork 20 and the outer formwork 30 are made of a prismatic shape, the concrete manhole to be manufactured may be made of a prismatic manhole, and the inner formwork 20 and the outer formwork 30 are manufactured in a circular shape It goes without saying that concrete manholes can be made into circular manholes.

The connector module assembling step (s20) is a configuration for assembling the connector module 100 installed through the lower side of the concrete manhole 200 to be manufactured. Referring to FIGS. 6 and 7, the connector module 100 is installed on the inside A connector body 101 composed of a connector body 110, an external connector body 120, and a spacing adjustment connector 130, and is fixedly coupled to the connector body 101, and the sewage main pipe 210 is connected during the construction of the manhole It is configured to include a connector connection tube 140 to which coupling is made.

The connector body 101 is made of PE foam material, and the connector connection pipe 140 is made of EPDM material (ethylene propylene rubber, Ethylene Propylene Diene Methylene). EPDM, which is the material of the connection pipe 140, is a synthetic rubber material with excellent weather resistance, heat resistance and ozone resistance. Meanwhile, although the connector body 101 has been described above as being made of PE foam material and the connector connection pipe 140 is made of EMPD material, it is not limited thereto, and the connector body 101 may be made of various synthetic resin foams other than PE foam. Of course, the connector connection pipe 150 may be made of various rubber materials other than EPDM rubber.

The spacing adjustment connector 130 is configured such that the outer end is inserted into the inner connector body 110 and coupled to the overlapped portion with a piece (screw). At this time, the gap adjusting connector 130 is configured so that the inner end 132 is in close contact with the outer surface of the inner die 20.

The distance adjustment connector 130 adjusts the degree of insertion into the inner connector body 110, and adjusts the length of the distance adjustment connector 130 protruding from the inner connector body 110 to the rear, thereby connecting the inner end 132. It is configured to be in close contact with the outer surface of the inner die 20.

In addition, the inner connector body 110 is provided with a first flange 112 around the outer end, the second flange 122 is provided on two inner ends of the outer connector body 120, the connector connection pipe 140 The inner / outer end of the third flange 142 is configured to be provided.

The connector connection pipe 140 is inserted into the outer connector body 120, in a state where the third flange 142 is interposed between the first flange 112 and the second flange 122, By combining the first flange 112, the third flange 142, and the second flange 122 with a piece or a nail, the inner connector body 110, the outer connector body 120, and the connector connector 140 are coupled and fixed. can

In addition, the connector connection pipe 140 is formed perpendicular to the circumference of the third flange 142 to prevent the lateral separation of the first flange 112 and the second flange 122, and the EPDM in the form of "ㅗ" A break-away watertight jaw 143 that secures watertightness by adhesion of concrete may be configured.

In addition, on one side of the outer surface of the inner connector body 110, a coupling portion 114 to which the lower end of the position fixing jig 35 is detachably coupled is formed. The coupling portion 114 is formed integrally with the fitting slit portion 115 integrally formed on the outer surface of the inner connector body 110, and is fitted into the fitting slit portion 115, and is connected to the lower end of the position fixing jig 35. It may be composed of a nut 116 that is detachably coupled by a screw fastening method.

The connector module position setting step (s30) is configured to position and fix the assembled connector module 100 to a set position according to the design.

In the present invention, separate perforated holes are formed in the inner formwork 20 and the outer formwork 30, and the position is fixed using the position fixing jig 35, rather than coupling the connector module 100 to the perforated holes. The upper end of the jig 35 is fixed to the outer die 30, the lower end of the position fixing sig 35 is fixed to the coupling part 114 of the connector module 100, and the connector module ( By adjusting the vertical position of 100, the connector module 100 can be installed in the set position.

The position fixing jig 35 is configured to include a support panel 40, a coupling tool 50, and a connector positioning bar 60.

Referring to FIG. 5, the support panel 40 is made of a metal piece having a predetermined length, and the rear end is coupled by a protruding piece 31 formed to protrude around the upper end of the outer formwork 30 and a coupling tool 50. The tip is installed so as to protrude into the upper end of the outer die 30, and a height fixing hole 41 is formed at the tip, and the height fixing hole 41 is configured to be larger than the diameter of the connector positioning bar 60 The connector positioning bar 60 is configured to pass through.

The coupling tool 50 is composed of vise pliers, and as shown in FIGS. 3 and 8, the protruding piece 31 and the rear end of the support panel 40 are gripped in an overlapped state to secure the support panel 40 to the outer formwork 30. It can be fastened at the top.

In the present invention, the rear end of the support panel 40 adjusts the overlapping position of the protruding piece 31 and engages it with a coupling tool 50, so that the horizontal installation position of the connector module 100 can be adjusted.

The connector positioning bar 60 is configured to include a positioning bar body 61 made of a bolt, and a locking member 62 made of a nut screwed to the positioning bar body 61.

The lower end of the positioning bar body 61 is configured to be detachably coupled to the nut 116 of the coupling part 114 formed on the upper outer surface of the inner connector body 110 in a screw fastening method.

The locking member 62 is configured in a larger size than the high fixing hole 41 so that the positioning bar body 61 is elevated and the locking member 62 is raised when passing through the fixing hole 41, and supports it from below the fixing hole 41 and supports it from above. is configured so that the positioning bar body 61 is installed in a vertically suspended form hanging on the high fixing hole 41.

The locking member 62 is installed to be movable in the vertical direction along the positioning bar body 61 by reverse rotation or forward rotation of the positioning bar body 61, so that it is coupled to the lower end of the positioning bar body 61. The connector module 100 is configured to be positioned at a setting position by adjusting the height of the connector module 100 up and down between the inner die 20 and the outer die 30.

Specifically, the connector module positioning step (s30) is a step of coupling the support panel 40 to the protruding piece 31 using the coupling tool 50, and the lower end of the positioning bar body 61 to the connector module ( 100) to the coupling part 114, and inserting the connector module 100 into the space between the inner die 20 and the outer die 30, and raising the positioning bar body 61 and fixing the hole ( 41) and adjusting the position where the engaging member 62 is coupled to the positioning bar body 61 so as to be caught in the high fixing hole 41 to include the step of locating the connector module 100 in the setting position It consists of

In the present invention, when the connector module 100 is positioned at a set position between the inner die 20 and the outer die 30 using the position fixing jig 35, the outer end of the connector body 101 is moved to the outer die 30. ) is made in close contact with the inner surface of the connector body 101, and the inner end of the connector body 101 is configured to be in close contact with the outer surface of the inner die 20. Specifically, in the connector body 101, the outer end of the outer connector body 120 is in close contact with the inner surface of the outer die 30, and the inner end 132 of the spacing adjusting connector 130 is attached to the outer surface of the inner die 20. It is installed so that it adheres closely.

At this time, since the connector module 100 of the present invention is formed in a form in which the distal end 140a of the connector connection pipe 140 protrudes outward from the outer connector body 120, in order to position the connector module 100 in the setting position After folding the distal end 140a of the connector connection tube 140 inward so that the distal end 140a of the connector connection tube 140 does not protrude from the outer connector body 120, the connector module 100 is placed in the inner mold 20 It is preferable to place it in the setting position by inserting it between the and outer die 30.

In the concrete pouring and position fixing jig separation step (s40), in a state where the connector module 100 is positioned at a set position between the inner formwork 20 and the outer formwork 30 through the step s30), the concrete mortar is placed on the inner formwork It is poured into the space between (20) and the outer formwork (30), applied with a vibrating compactor to apply vibration to the concrete to be compacted, and then the position fixing jig (35) is separated from the coupling part (114) and the outer It is configured to release from the formwork 30.

Specifically, after the concrete is poured, the coupling tool 50 is released to separate the support panel 40 from the protruding piece 31, and the positioning bar body 61 is rotated to rotate the nut of the coupling part 114 ( The position fixing jig 35 can be separated from the external formwork 30 and the connector module 100 by releasing the fastening at 116 and taking it out of the poured concrete mortar.

In the concrete curing and formwork removal step (s50), after the step s40, when the concrete is cured after a predetermined time, the concrete manhole (200) ) the product is complete.

In the manufacturing method of the present invention, after the concrete manhole 200 is completed as described above, the distal end 140a of the connector connection pipe 140 folded inward is taken out to the outside so that the distal end 140a is on the side of the outer connector body 120. It may include a configuration that protrudes to the outside of the finished crete manhole 200 by protruding into.

As such, the concrete manhole manufacturing method of the present invention forms separate perforated holes in the inner formwork 20 and the outer formwork 30 as in the prior art, and fixes the position without coupling the connector module 100 to the perforated holes. Using the jig 35, the connector module 100 can be precisely positioned and adjusted to the set position between the inner die 20 and the outer die 30, so the various sizes and designs of the connector module 100 Depending on the location, the inner formwork 20 and the outer formwork 30 can be reused without discarding the inner formwork 20 and the outer formwork 30 .

On the other hand, in the above, the present invention is a fitting slit portion 115 integrally formed on the outer surface of the inner connector body 110 so that the lower end of the position fixing jig 35 is detachably coupled to the outer surface of the inner connector body 110. ), and a coupling portion 114 composed of a nut 116 that is fitted into the fitting slit portion 115 and is detachably coupled to the lower end of the positioning bar body 61 by a screw fastening method. Although it has been described, it is not limited thereto, and the positioning bar body 61 is made of computerized bolts, and a screw screw is integrally formed at the lower end of the positioning bar body 61 to rotate the positioning bar body 61. It may be configured so that the screw screw formed at the lower end of the positioning bar body 61 directly penetrates into the outer surface of the inner connector body 110 and is coupled thereto. On the other hand, the positioning bar body 61 may be separated from the inner connector body 110 by rotating the positioning bar body 61 in the opposite direction to fastening.

Hereinafter, with reference to FIGS. 9 to 12, a concrete manhole construction structure in which the concrete manhole 200 manufactured by the manufacturing method as described above is connected to the sewage main pipe 210 will be described.

The manhole construction structure of the present invention inserts and connects the distal end of the sewage main pipe 210 to the inside of the connector module 100 through the inside of the distal end 140a of the connector connection pipe 140, and then to the bending coupling unit 300 By wrapping and tightening the distal end 140a of the connector connection pipe 140, the connector connection pipe 140 and the sewage main pipe 210 may be coupled.

The bending coupling unit 300 is made of a synthetic resin material such as PE having a predetermined length, and is installed on both ends of the bending body plate portion 310 and the bending body plate portion 310 surrounding the outer surface of the distal end 140a of the connector connection pipe 140 It is made of a pair of connecting bars 320, bolts and nuts, which are installed to be arranged in parallel side by side, connect the pair of connecting bars 320 to each other, and fasten the pair of connecting bars 320 so that they are close to each other. The bending body plate portion 310 presses the distal end 140a of the connector connection pipe 140 so that the connector connection pipe 140 and the sewage main pipe 210 are coupled to each other. It is configured to include a tightening means 330 .

The bending body plate portion 310 is configured with a first fixing part 314 at both ends, and a second fixing part 315 is configured at a position spaced apart from the first fixing part 314 by a predetermined interval, both ends A pair of ring parts 312 at both ends (FIG. 12) by rolling each of them into a ring shape and coupling the first fixing part 314 to the second fixing part 315 through fastening means (b1, b2) such as bolts and nuts. reference) is formed.

Each of the pair of hook parts 312 is configured to insert a pair of connecting bars 320, respectively, and each of the pair of connecting bars 320 has a bolt through hole 322 penetrating the middle part in the longitudinal direction. configured to form.

In addition, a pair of hook portions 312 formed at both ends of the bending body plate portion 310 have a long hole-shaped exposure hole 313 exposing the bolt through hole 322 to the outside while the connecting bar 320 is inserted is formed, and the fastening means 330 is configured to be inserted into the bolt passage hole 322 through the exposure hole 313.

The fastening means 330 is made of bolts, and is configured to have a nut 332 coupled to the bolt, and as shown in FIGS. 10 and 12, a pair of connecting bars 320 through an exposure hole 313 on one side. After passing through each bolt through hole 322 formed in ), after passing through the exposed hole 313 on the other side, it is configured to be fastened with the nut 332. When the nut 332 is tightened after fastening to the bolt, the pair of connecting bars 320 come closer to each other, and the bending body plate 310 strongly tightens and pressurizes the distal end 140a of the connector connection pipe 140, so that the connector The connection pipe 140 and the sewage main pipe 210 are firmly coupled.

On the other hand, the present invention fastens the pair of connecting bars 320 through the tightening means 330 to press the end portion 140a of the connector connection pipe 140 by the bending body plate portion 310, the connector connection pipe 140 ) And when the sewage main pipe 210 is coupled, the pair of rings 312 formed on both sides of the banding body plate 310 are spaced apart from each other, and the pair of rings 312 are spaced apart Connector connection A portion of tube 140 may be exposed.

12, the present invention uses a pair of connecting bars 320 as tightening means 330 so that the outer surface of the connector connection pipe 140 is not exposed to the space between the pair of hook parts 312 spaced apart. Before fastening, it adheres to the outer surface of the connector connector 140 so that the outer surface of the connector 140 is not exposed in the space between the pair of hooks 312, and the pair of connecting bars are connected by the tightening means 330. A band support plate 340 supporting the 320 to withstand the pressure applied to the connector connection pipe 140 may be further configured.

In the above, the present invention has been shown and described in relation to preferred embodiments for illustrating the principles of the present invention, but the present invention is not limited to the configuration and operation as shown and described. Rather, those skilled in the art will appreciate that many changes and modifications to the present invention can be made without departing from the spirit and scope of the appended claims. Accordingly, all such appropriate changes and modifications and equivalents should be regarded as belonging to the scope of the present invention.

10... floor formwork
12... gap member
20... inner formwork
30... outer formwork
31... overhang
35... Position fixing jig
40... support panel
41... high hall
50... vise pliers
60... Connector position setting bar
61 ... position setting bar body
62... hanging member
100... connector module
101... connector body
110... inner connector body
112... 1st flange
114... junction
115... fitting slit part
116... nut
120... External connector body
122... 2nd flange
130... Gap adjustment connector
140... connector ferrule
142... 3rd flange
143... Anti-breakaway watertight jaw
200... concrete manhole
210... sewer main
300... banding coupling unit
310... Banding body plate
312... ring part
313... exposure hole
314... 1st fixing part
315... 2nd fixing part
320... connecting bar
322... bolt through hole
330... fastening means
332... nut
340 ... band support plate

Claims (8)

In the concrete manhole manufacturing method for manufacturing a concrete manhole equipped with a connector for connecting the sewer main,
a) preparing an inner formwork and an outer formwork for forming a circular or prismatic manhole, and placing the inner formwork and outer formwork on the upper surface of the floor formwork;
b) preparing a connector module by assembling connector components;
c) inserting the connector module between the inner formwork and the outer formwork, and positioning the connector module in a set position using a position fixing jig;
d) pouring concrete between the inner formwork and the outer formwork, and separating the position fixing jig after completion of pouring;
e) completing the concrete manhole by removing the inner formwork, the outer formwork, and the floor formwork after the curing of the concrete poured between the inner formwork and the outer formwork is completed; concrete manhole manufacturing method comprising a.
According to claim 1,
The position fixing jig,
A support panel coupled to a protruding piece formed outwardly at the top of the outer formwork, installed to protrude inward from the top of the outer formwork, and having a high fixing hole formed at the side end;
a coupling tool for pinching and fixing the support panel and the protruding piece;
The lower end is detachably coupled to the connector module, and the upper end penetrates the height fixing hole, adjusts its position up and down on the support panel, and fixes the connector module in a setting position between the inner formwork and the outer formwork by a hanging method. A concrete manhole manufacturing method characterized in that it is configured to include; a connector positioning bar to do.
According to claim 2,
The connector position setting bar
A positioning bar body formed in a rod shape and formed in the form of a computerized bolt having an outer circumferential male thread and to which the connector module is detachably coupled to the lower end;
It is composed of a nut shape and is screwed to the positioning bar body so that it is moved up and down and is caught in the height fixing hole to fix the connector module to the setting position. Manhole manufacturing method.
According to claim 3,
In step c),
coupling the support panel to the protruding piece using the coupling tool;
coupling a lower end of the positioning bar body to the connector module and inserting the connector module between the inner die and the outer die;
In a state where the upper end of the positioning bar body is passed through the height fixing hole, the holding member is screwed to the positioning bar body to adjust the height so that the connector module is positioned in the setting position to be caught in the height fixing hole A concrete manhole manufacturing method comprising the step of doing.
According to claim 1,
The connector module,
A connector body made of a synthetic resin material and disposed so that the distance adjusting end and the outer end are in close contact between the inner mold and the outer mold, respectively;
During manhole construction, it is connected to the sewer main pipe, made of a rubber material having soft and elastic properties, coupled to the connector body, and configured such that the distal end protrudes outward from the connector body, between the inner formwork and the outer formwork A method for manufacturing a concrete manhole, characterized in that it comprises a; connector connection pipe in which the insertion is made in a state where the distal end is folded inward when inserted.
A concrete manhole manufactured by the method of manufacturing a concrete manhole according to any one of claims 1 to 5.
In a manhole construction structure in which a concrete manhole equipped with a connector is constructed in a connector hole formed on one side,
The distal end of the connector is tightly coupled to the sewer main by wrapping and tightening the distal end of the connector with a banding coupling unit in a state in which the end of the sewer main pipe is inserted and connected to the distal end of the connector,
The bending coupling unit,
A bending body plate portion made of a plate having a predetermined length and surrounding the distal end of the connector;
A pair of connecting bars fixed to both ends of the bending body plate and arranged side by side;
It is made of bolts and nuts, and fastening means for connecting the pair of connecting bars to each other so that the pair of connecting bars are fastened so that the bending body plate presses and fixes the distal end of the connector; characterized in that it comprises a Manhole construction structure.
According to claim 7,
The bending body plate portion has a first fixing part at both ends, and a second fixing part at a predetermined distance from the first fixing part, and the first fixing part is coupled to the second fixing part to achieve the bending A pair of rings are formed on both sides of the body plate,
The pair of connecting bars are inserted and installed into the pair of rings, and a bolt through hole through which the tightening means passes and is fastened is formed at an intermediate portion of the length of each of the pair of connecting bars,
A manhole construction structure, characterized in that each of the pair of rings is formed with an exposure hole through which the bolt passage hole is exposed, so that the tightening means is inserted into the bolt passage hole through the exposure hole.

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